gem_id stringlengths 20 25 | id stringlengths 24 24 | title stringlengths 3 59 | context stringlengths 151 3.71k | question stringlengths 1 270 | target stringlengths 1 270 | references list | answers dict |
|---|---|---|---|---|---|---|---|
gem-squad_v2-train-17200 | 570e37d60b85d914000d7d8b | Uranium | A person can be exposed to uranium (or its radioactive daughters, such as radon) by inhaling dust in air or by ingesting contaminated water and food. The amount of uranium in air is usually very small; however, people who work in factories that process phosphate fertilizers, live near government facilities that made or tested nuclear weapons, live or work near a modern battlefield where depleted uranium weapons have been used, or live or work near a coal-fired power plant, facilities that mine or process uranium ore, or enrich uranium for reactor fuel, may have increased exposure to uranium. Houses or structures that are over uranium deposits (either natural or man-made slag deposits) may have an increased incidence of exposure to radon gas. The Occupational Safety and Health Administration (OSHA) has set the permissible exposure limit for uranium exposure in the workplace as 0.25 mg/m3 over an 8-hour workday. The National Institute for Occupational Safety and Health (NIOSH) has set a recommended exposure limit (REL) of 0.2 mg/m3 over an 8-hour workday and a short-term limit of 0.6 mg/m3. At levels of 10 mg/m3, uranium is immediately dangerous to life and health. | What is OSHA? | What is OSHA? | [
"What is OSHA?"
] | {
"text": [
"Occupational Safety and Health Administration"
],
"answer_start": [
756
]
} |
gem-squad_v2-train-17201 | 570e37d60b85d914000d7d8c | Uranium | A person can be exposed to uranium (or its radioactive daughters, such as radon) by inhaling dust in air or by ingesting contaminated water and food. The amount of uranium in air is usually very small; however, people who work in factories that process phosphate fertilizers, live near government facilities that made or tested nuclear weapons, live or work near a modern battlefield where depleted uranium weapons have been used, or live or work near a coal-fired power plant, facilities that mine or process uranium ore, or enrich uranium for reactor fuel, may have increased exposure to uranium. Houses or structures that are over uranium deposits (either natural or man-made slag deposits) may have an increased incidence of exposure to radon gas. The Occupational Safety and Health Administration (OSHA) has set the permissible exposure limit for uranium exposure in the workplace as 0.25 mg/m3 over an 8-hour workday. The National Institute for Occupational Safety and Health (NIOSH) has set a recommended exposure limit (REL) of 0.2 mg/m3 over an 8-hour workday and a short-term limit of 0.6 mg/m3. At levels of 10 mg/m3, uranium is immediately dangerous to life and health. | What is the OSHA uranium exposure limit for an 8-hour workday? | What is the OSHA uranium exposure limit for an 8-hour workday? | [
"What is the OSHA uranium exposure limit for an 8-hour workday?"
] | {
"text": [
"0.25 mg/m3"
],
"answer_start": [
889
]
} |
gem-squad_v2-train-17202 | 570e37d60b85d914000d7d8d | Uranium | A person can be exposed to uranium (or its radioactive daughters, such as radon) by inhaling dust in air or by ingesting contaminated water and food. The amount of uranium in air is usually very small; however, people who work in factories that process phosphate fertilizers, live near government facilities that made or tested nuclear weapons, live or work near a modern battlefield where depleted uranium weapons have been used, or live or work near a coal-fired power plant, facilities that mine or process uranium ore, or enrich uranium for reactor fuel, may have increased exposure to uranium. Houses or structures that are over uranium deposits (either natural or man-made slag deposits) may have an increased incidence of exposure to radon gas. The Occupational Safety and Health Administration (OSHA) has set the permissible exposure limit for uranium exposure in the workplace as 0.25 mg/m3 over an 8-hour workday. The National Institute for Occupational Safety and Health (NIOSH) has set a recommended exposure limit (REL) of 0.2 mg/m3 over an 8-hour workday and a short-term limit of 0.6 mg/m3. At levels of 10 mg/m3, uranium is immediately dangerous to life and health. | What does REL stand for? | What does REL stand for? | [
"What does REL stand for?"
] | {
"text": [
"recommended exposure limit"
],
"answer_start": [
1000
]
} |
gem-squad_v2-train-17203 | 570e37d60b85d914000d7d8e | Uranium | A person can be exposed to uranium (or its radioactive daughters, such as radon) by inhaling dust in air or by ingesting contaminated water and food. The amount of uranium in air is usually very small; however, people who work in factories that process phosphate fertilizers, live near government facilities that made or tested nuclear weapons, live or work near a modern battlefield where depleted uranium weapons have been used, or live or work near a coal-fired power plant, facilities that mine or process uranium ore, or enrich uranium for reactor fuel, may have increased exposure to uranium. Houses or structures that are over uranium deposits (either natural or man-made slag deposits) may have an increased incidence of exposure to radon gas. The Occupational Safety and Health Administration (OSHA) has set the permissible exposure limit for uranium exposure in the workplace as 0.25 mg/m3 over an 8-hour workday. The National Institute for Occupational Safety and Health (NIOSH) has set a recommended exposure limit (REL) of 0.2 mg/m3 over an 8-hour workday and a short-term limit of 0.6 mg/m3. At levels of 10 mg/m3, uranium is immediately dangerous to life and health. | What is the NIOSH uranium exposure standard over an 8-hour workday? | What is the NIOSH uranium exposure standard over an 8-hour workday? | [
"What is the NIOSH uranium exposure standard over an 8-hour workday?"
] | {
"text": [
"0.2 mg/m3"
],
"answer_start": [
1036
]
} |
gem-squad_v2-train-17204 | 570e37d60b85d914000d7d8f | Uranium | A person can be exposed to uranium (or its radioactive daughters, such as radon) by inhaling dust in air or by ingesting contaminated water and food. The amount of uranium in air is usually very small; however, people who work in factories that process phosphate fertilizers, live near government facilities that made or tested nuclear weapons, live or work near a modern battlefield where depleted uranium weapons have been used, or live or work near a coal-fired power plant, facilities that mine or process uranium ore, or enrich uranium for reactor fuel, may have increased exposure to uranium. Houses or structures that are over uranium deposits (either natural or man-made slag deposits) may have an increased incidence of exposure to radon gas. The Occupational Safety and Health Administration (OSHA) has set the permissible exposure limit for uranium exposure in the workplace as 0.25 mg/m3 over an 8-hour workday. The National Institute for Occupational Safety and Health (NIOSH) has set a recommended exposure limit (REL) of 0.2 mg/m3 over an 8-hour workday and a short-term limit of 0.6 mg/m3. At levels of 10 mg/m3, uranium is immediately dangerous to life and health. | At what level of exposure does uranium become imminently dangerous to health? | At what level of exposure does uranium become imminently dangerous to health? | [
"At what level of exposure does uranium become imminently dangerous to health?"
] | {
"text": [
"10 mg/m3"
],
"answer_start": [
1119
]
} |
gem-squad_v2-train-17205 | 5ad15364645df0001a2d1782 | Uranium | A person can be exposed to uranium (or its radioactive daughters, such as radon) by inhaling dust in air or by ingesting contaminated water and food. The amount of uranium in air is usually very small; however, people who work in factories that process phosphate fertilizers, live near government facilities that made or tested nuclear weapons, live or work near a modern battlefield where depleted uranium weapons have been used, or live or work near a coal-fired power plant, facilities that mine or process uranium ore, or enrich uranium for reactor fuel, may have increased exposure to uranium. Houses or structures that are over uranium deposits (either natural or man-made slag deposits) may have an increased incidence of exposure to radon gas. The Occupational Safety and Health Administration (OSHA) has set the permissible exposure limit for uranium exposure in the workplace as 0.25 mg/m3 over an 8-hour workday. The National Institute for Occupational Safety and Health (NIOSH) has set a recommended exposure limit (REL) of 0.2 mg/m3 over an 8-hour workday and a short-term limit of 0.6 mg/m3. At levels of 10 mg/m3, uranium is immediately dangerous to life and health. | What is OHSA? | What is OHSA? | [
"What is OHSA?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17206 | 5ad15364645df0001a2d1783 | Uranium | A person can be exposed to uranium (or its radioactive daughters, such as radon) by inhaling dust in air or by ingesting contaminated water and food. The amount of uranium in air is usually very small; however, people who work in factories that process phosphate fertilizers, live near government facilities that made or tested nuclear weapons, live or work near a modern battlefield where depleted uranium weapons have been used, or live or work near a coal-fired power plant, facilities that mine or process uranium ore, or enrich uranium for reactor fuel, may have increased exposure to uranium. Houses or structures that are over uranium deposits (either natural or man-made slag deposits) may have an increased incidence of exposure to radon gas. The Occupational Safety and Health Administration (OSHA) has set the permissible exposure limit for uranium exposure in the workplace as 0.25 mg/m3 over an 8-hour workday. The National Institute for Occupational Safety and Health (NIOSH) has set a recommended exposure limit (REL) of 0.2 mg/m3 over an 8-hour workday and a short-term limit of 0.6 mg/m3. At levels of 10 mg/m3, uranium is immediately dangerous to life and health. | What is the OSHA uranium exposure limit for an 9-hour workday? | What is the OSHA uranium exposure limit for an 9-hour workday? | [
"What is the OSHA uranium exposure limit for an 9-hour workday?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17207 | 5ad15364645df0001a2d1784 | Uranium | A person can be exposed to uranium (or its radioactive daughters, such as radon) by inhaling dust in air or by ingesting contaminated water and food. The amount of uranium in air is usually very small; however, people who work in factories that process phosphate fertilizers, live near government facilities that made or tested nuclear weapons, live or work near a modern battlefield where depleted uranium weapons have been used, or live or work near a coal-fired power plant, facilities that mine or process uranium ore, or enrich uranium for reactor fuel, may have increased exposure to uranium. Houses or structures that are over uranium deposits (either natural or man-made slag deposits) may have an increased incidence of exposure to radon gas. The Occupational Safety and Health Administration (OSHA) has set the permissible exposure limit for uranium exposure in the workplace as 0.25 mg/m3 over an 8-hour workday. The National Institute for Occupational Safety and Health (NIOSH) has set a recommended exposure limit (REL) of 0.2 mg/m3 over an 8-hour workday and a short-term limit of 0.6 mg/m3. At levels of 10 mg/m3, uranium is immediately dangerous to life and health. | What doesn't REL stand for? | What doesn't REL stand for? | [
"What doesn't REL stand for?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17208 | 5ad15364645df0001a2d1785 | Uranium | A person can be exposed to uranium (or its radioactive daughters, such as radon) by inhaling dust in air or by ingesting contaminated water and food. The amount of uranium in air is usually very small; however, people who work in factories that process phosphate fertilizers, live near government facilities that made or tested nuclear weapons, live or work near a modern battlefield where depleted uranium weapons have been used, or live or work near a coal-fired power plant, facilities that mine or process uranium ore, or enrich uranium for reactor fuel, may have increased exposure to uranium. Houses or structures that are over uranium deposits (either natural or man-made slag deposits) may have an increased incidence of exposure to radon gas. The Occupational Safety and Health Administration (OSHA) has set the permissible exposure limit for uranium exposure in the workplace as 0.25 mg/m3 over an 8-hour workday. The National Institute for Occupational Safety and Health (NIOSH) has set a recommended exposure limit (REL) of 0.2 mg/m3 over an 8-hour workday and a short-term limit of 0.6 mg/m3. At levels of 10 mg/m3, uranium is immediately dangerous to life and health. | What is the NIOSH plutonium exposure standard over an 8-hour workday? | What is the NIOSH plutonium exposure standard over an 8-hour workday? | [
"What is the NIOSH plutonium exposure standard over an 8-hour workday?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17209 | 5ad15364645df0001a2d1786 | Uranium | A person can be exposed to uranium (or its radioactive daughters, such as radon) by inhaling dust in air or by ingesting contaminated water and food. The amount of uranium in air is usually very small; however, people who work in factories that process phosphate fertilizers, live near government facilities that made or tested nuclear weapons, live or work near a modern battlefield where depleted uranium weapons have been used, or live or work near a coal-fired power plant, facilities that mine or process uranium ore, or enrich uranium for reactor fuel, may have increased exposure to uranium. Houses or structures that are over uranium deposits (either natural or man-made slag deposits) may have an increased incidence of exposure to radon gas. The Occupational Safety and Health Administration (OSHA) has set the permissible exposure limit for uranium exposure in the workplace as 0.25 mg/m3 over an 8-hour workday. The National Institute for Occupational Safety and Health (NIOSH) has set a recommended exposure limit (REL) of 0.2 mg/m3 over an 8-hour workday and a short-term limit of 0.6 mg/m3. At levels of 10 mg/m3, uranium is immediately dangerous to life and health. | At what level of exposure doesn't uranium become imminently dangerous to health? | At what level of exposure doesn't uranium become imminently dangerous to health? | [
"At what level of exposure doesn't uranium become imminently dangerous to health?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17210 | 570e386c0dc6ce1900204e9b | Uranium | The most common forms of uranium oxide are triuranium octoxide (U
3O
8) and UO
2. Both oxide forms are solids that have low solubility in water and are relatively stable over a wide range of environmental conditions. Triuranium octoxide is (depending on conditions) the most stable compound of uranium and is the form most commonly found in nature. Uranium dioxide is the form in which uranium is most commonly used as a nuclear reactor fuel. At ambient temperatures, UO
2 will gradually convert to U
3O
8. Because of their stability, uranium oxides are generally considered the preferred chemical form for storage or disposal. | Along with UO2, what is the commonest form of uranium oxide? | Along with UO2, what is the commonest form of uranium oxide? | [
"Along with UO2, what is the commonest form of uranium oxide?"
] | {
"text": [
"triuranium octoxide"
],
"answer_start": [
43
]
} |
gem-squad_v2-train-17211 | 570e386c0dc6ce1900204e9c | Uranium | The most common forms of uranium oxide are triuranium octoxide (U
3O
8) and UO
2. Both oxide forms are solids that have low solubility in water and are relatively stable over a wide range of environmental conditions. Triuranium octoxide is (depending on conditions) the most stable compound of uranium and is the form most commonly found in nature. Uranium dioxide is the form in which uranium is most commonly used as a nuclear reactor fuel. At ambient temperatures, UO
2 will gradually convert to U
3O
8. Because of their stability, uranium oxides are generally considered the preferred chemical form for storage or disposal. | What is the stablest uranium compound? | What is the stablest uranium compound? | [
"What is the stablest uranium compound?"
] | {
"text": [
"Triuranium octoxide"
],
"answer_start": [
217
]
} |
gem-squad_v2-train-17212 | 570e386c0dc6ce1900204e9d | Uranium | The most common forms of uranium oxide are triuranium octoxide (U
3O
8) and UO
2. Both oxide forms are solids that have low solubility in water and are relatively stable over a wide range of environmental conditions. Triuranium octoxide is (depending on conditions) the most stable compound of uranium and is the form most commonly found in nature. Uranium dioxide is the form in which uranium is most commonly used as a nuclear reactor fuel. At ambient temperatures, UO
2 will gradually convert to U
3O
8. Because of their stability, uranium oxides are generally considered the preferred chemical form for storage or disposal. | In what form is uranium most often used as fuel for nuclear reactors? | In what form is uranium most often used as fuel for nuclear reactors? | [
"In what form is uranium most often used as fuel for nuclear reactors?"
] | {
"text": [
"Uranium dioxide"
],
"answer_start": [
349
]
} |
gem-squad_v2-train-17213 | 5ad14aa7645df0001a2d15b2 | Uranium | The most common forms of uranium oxide are triuranium octoxide (U
3O
8) and UO
2. Both oxide forms are solids that have low solubility in water and are relatively stable over a wide range of environmental conditions. Triuranium octoxide is (depending on conditions) the most stable compound of uranium and is the form most commonly found in nature. Uranium dioxide is the form in which uranium is most commonly used as a nuclear reactor fuel. At ambient temperatures, UO
2 will gradually convert to U
3O
8. Because of their stability, uranium oxides are generally considered the preferred chemical form for storage or disposal. | Along with UO2, what is the least commonest form of uranium oxide? | Along with UO2, what is the least commonest form of uranium oxide? | [
"Along with UO2, what is the least commonest form of uranium oxide?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17214 | 5ad14aa7645df0001a2d15b3 | Uranium | The most common forms of uranium oxide are triuranium octoxide (U
3O
8) and UO
2. Both oxide forms are solids that have low solubility in water and are relatively stable over a wide range of environmental conditions. Triuranium octoxide is (depending on conditions) the most stable compound of uranium and is the form most commonly found in nature. Uranium dioxide is the form in which uranium is most commonly used as a nuclear reactor fuel. At ambient temperatures, UO
2 will gradually convert to U
3O
8. Because of their stability, uranium oxides are generally considered the preferred chemical form for storage or disposal. | What is the least stable uranium compound? | What is the least stable uranium compound? | [
"What is the least stable uranium compound?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17215 | 5ad14aa7645df0001a2d15b4 | Uranium | The most common forms of uranium oxide are triuranium octoxide (U
3O
8) and UO
2. Both oxide forms are solids that have low solubility in water and are relatively stable over a wide range of environmental conditions. Triuranium octoxide is (depending on conditions) the most stable compound of uranium and is the form most commonly found in nature. Uranium dioxide is the form in which uranium is most commonly used as a nuclear reactor fuel. At ambient temperatures, UO
2 will gradually convert to U
3O
8. Because of their stability, uranium oxides are generally considered the preferred chemical form for storage or disposal. | In what form is uranium least often used as fuel for nuclear reactors? | In what form is uranium least often used as fuel for nuclear reactors? | [
"In what form is uranium least often used as fuel for nuclear reactors?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17216 | 570e38eb0dc6ce1900204ea5 | Uranium | The use of uranium in its natural oxide form dates back to at least the year 79 CE, when it was used to add a yellow color to ceramic glazes. Yellow glass with 1% uranium oxide was found in a Roman villa on Cape Posillipo in the Bay of Naples, Italy, by R. T. Gunther of the University of Oxford in 1912. Starting in the late Middle Ages, pitchblende was extracted from the Habsburg silver mines in Joachimsthal, Bohemia (now Jáchymov in the Czech Republic), and was used as a coloring agent in the local glassmaking industry. In the early 19th century, the world's only known sources of uranium ore were these mines. | What was the earliest year in recorded history that uranium oxide was used? | What was the earliest year in recorded history that uranium oxide was used? | [
"What was the earliest year in recorded history that uranium oxide was used?"
] | {
"text": [
"79 CE"
],
"answer_start": [
77
]
} |
gem-squad_v2-train-17217 | 570e38eb0dc6ce1900204ea6 | Uranium | The use of uranium in its natural oxide form dates back to at least the year 79 CE, when it was used to add a yellow color to ceramic glazes. Yellow glass with 1% uranium oxide was found in a Roman villa on Cape Posillipo in the Bay of Naples, Italy, by R. T. Gunther of the University of Oxford in 1912. Starting in the late Middle Ages, pitchblende was extracted from the Habsburg silver mines in Joachimsthal, Bohemia (now Jáchymov in the Czech Republic), and was used as a coloring agent in the local glassmaking industry. In the early 19th century, the world's only known sources of uranium ore were these mines. | What color of ceramic glaze was extracted from uranium oxide? | What color of ceramic glaze was extracted from uranium oxide? | [
"What color of ceramic glaze was extracted from uranium oxide?"
] | {
"text": [
"yellow"
],
"answer_start": [
110
]
} |
gem-squad_v2-train-17218 | 570e38eb0dc6ce1900204ea7 | Uranium | The use of uranium in its natural oxide form dates back to at least the year 79 CE, when it was used to add a yellow color to ceramic glazes. Yellow glass with 1% uranium oxide was found in a Roman villa on Cape Posillipo in the Bay of Naples, Italy, by R. T. Gunther of the University of Oxford in 1912. Starting in the late Middle Ages, pitchblende was extracted from the Habsburg silver mines in Joachimsthal, Bohemia (now Jáchymov in the Czech Republic), and was used as a coloring agent in the local glassmaking industry. In the early 19th century, the world's only known sources of uranium ore were these mines. | In what county was glass with uranium oxide content found? | In what county was glass with uranium oxide content found? | [
"In what county was glass with uranium oxide content found?"
] | {
"text": [
"Italy"
],
"answer_start": [
244
]
} |
gem-squad_v2-train-17219 | 570e38eb0dc6ce1900204ea8 | Uranium | The use of uranium in its natural oxide form dates back to at least the year 79 CE, when it was used to add a yellow color to ceramic glazes. Yellow glass with 1% uranium oxide was found in a Roman villa on Cape Posillipo in the Bay of Naples, Italy, by R. T. Gunther of the University of Oxford in 1912. Starting in the late Middle Ages, pitchblende was extracted from the Habsburg silver mines in Joachimsthal, Bohemia (now Jáchymov in the Czech Republic), and was used as a coloring agent in the local glassmaking industry. In the early 19th century, the world's only known sources of uranium ore were these mines. | In what year was yellow uranium oxide glass discovered? | In what year was yellow uranium oxide glass discovered? | [
"In what year was yellow uranium oxide glass discovered?"
] | {
"text": [
"1912"
],
"answer_start": [
299
]
} |
gem-squad_v2-train-17220 | 570e38eb0dc6ce1900204ea9 | Uranium | The use of uranium in its natural oxide form dates back to at least the year 79 CE, when it was used to add a yellow color to ceramic glazes. Yellow glass with 1% uranium oxide was found in a Roman villa on Cape Posillipo in the Bay of Naples, Italy, by R. T. Gunther of the University of Oxford in 1912. Starting in the late Middle Ages, pitchblende was extracted from the Habsburg silver mines in Joachimsthal, Bohemia (now Jáchymov in the Czech Republic), and was used as a coloring agent in the local glassmaking industry. In the early 19th century, the world's only known sources of uranium ore were these mines. | What institution did R.T. Gunther belong to? | What institution did R.T. Gunther belong to? | [
"What institution did R.T. Gunther belong to?"
] | {
"text": [
"the University of Oxford"
],
"answer_start": [
271
]
} |
gem-squad_v2-train-17221 | 5ad1167a645df0001a2d0d14 | Uranium | The use of uranium in its natural oxide form dates back to at least the year 79 CE, when it was used to add a yellow color to ceramic glazes. Yellow glass with 1% uranium oxide was found in a Roman villa on Cape Posillipo in the Bay of Naples, Italy, by R. T. Gunther of the University of Oxford in 1912. Starting in the late Middle Ages, pitchblende was extracted from the Habsburg silver mines in Joachimsthal, Bohemia (now Jáchymov in the Czech Republic), and was used as a coloring agent in the local glassmaking industry. In the early 19th century, the world's only known sources of uranium ore were these mines. | What was the latest year in recorded history that uranium oxide was used? | What was the latest year in recorded history that uranium oxide was used? | [
"What was the latest year in recorded history that uranium oxide was used?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17222 | 5ad1167a645df0001a2d0d15 | Uranium | The use of uranium in its natural oxide form dates back to at least the year 79 CE, when it was used to add a yellow color to ceramic glazes. Yellow glass with 1% uranium oxide was found in a Roman villa on Cape Posillipo in the Bay of Naples, Italy, by R. T. Gunther of the University of Oxford in 1912. Starting in the late Middle Ages, pitchblende was extracted from the Habsburg silver mines in Joachimsthal, Bohemia (now Jáchymov in the Czech Republic), and was used as a coloring agent in the local glassmaking industry. In the early 19th century, the world's only known sources of uranium ore were these mines. | What color of ceramic glaze was subtracted from uranium oxide? | What color of ceramic glaze was subtracted from uranium oxide? | [
"What color of ceramic glaze was subtracted from uranium oxide?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17223 | 5ad1167a645df0001a2d0d16 | Uranium | The use of uranium in its natural oxide form dates back to at least the year 79 CE, when it was used to add a yellow color to ceramic glazes. Yellow glass with 1% uranium oxide was found in a Roman villa on Cape Posillipo in the Bay of Naples, Italy, by R. T. Gunther of the University of Oxford in 1912. Starting in the late Middle Ages, pitchblende was extracted from the Habsburg silver mines in Joachimsthal, Bohemia (now Jáchymov in the Czech Republic), and was used as a coloring agent in the local glassmaking industry. In the early 19th century, the world's only known sources of uranium ore were these mines. | In what county was glass with uranium dioxide content found? | In what county was glass with uranium dioxide content found? | [
"In what county was glass with uranium dioxide content found?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17224 | 5ad1167a645df0001a2d0d17 | Uranium | The use of uranium in its natural oxide form dates back to at least the year 79 CE, when it was used to add a yellow color to ceramic glazes. Yellow glass with 1% uranium oxide was found in a Roman villa on Cape Posillipo in the Bay of Naples, Italy, by R. T. Gunther of the University of Oxford in 1912. Starting in the late Middle Ages, pitchblende was extracted from the Habsburg silver mines in Joachimsthal, Bohemia (now Jáchymov in the Czech Republic), and was used as a coloring agent in the local glassmaking industry. In the early 19th century, the world's only known sources of uranium ore were these mines. | In what year was yellow uranium oxide glass undiscovered? | In what year was yellow uranium oxide glass undiscovered? | [
"In what year was yellow uranium oxide glass undiscovered?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17225 | 5ad1167a645df0001a2d0d18 | Uranium | The use of uranium in its natural oxide form dates back to at least the year 79 CE, when it was used to add a yellow color to ceramic glazes. Yellow glass with 1% uranium oxide was found in a Roman villa on Cape Posillipo in the Bay of Naples, Italy, by R. T. Gunther of the University of Oxford in 1912. Starting in the late Middle Ages, pitchblende was extracted from the Habsburg silver mines in Joachimsthal, Bohemia (now Jáchymov in the Czech Republic), and was used as a coloring agent in the local glassmaking industry. In the early 19th century, the world's only known sources of uranium ore were these mines. | What institution did T.T. Gunther belong to? | What institution did T.T. Gunther belong to? | [
"What institution did T.T. Gunther belong to?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17226 | 570e39580b85d914000d7d9f | Uranium | On 2 December 1942, as part of the Manhattan Project, another team led by Enrico Fermi was able to initiate the first artificial self-sustained nuclear chain reaction, Chicago Pile-1. Working in a lab below the stands of Stagg Field at the University of Chicago, the team created the conditions needed for such a reaction by piling together 400 short tons (360 metric tons) of graphite, 58 short tons (53 metric tons) of uranium oxide, and six short tons (5.5 metric tons) of uranium metal, a majority of which was supplied by Westinghouse Lamp Plant in a makeshift production process. | What was the first self-sustained nuclear chain reaction created by human beings called? | What was the first self-sustained nuclear chain reaction created by human beings called? | [
"What was the first self-sustained nuclear chain reaction created by human beings called?"
] | {
"text": [
"Chicago Pile-1"
],
"answer_start": [
168
]
} |
gem-squad_v2-train-17227 | 570e39580b85d914000d7da0 | Uranium | On 2 December 1942, as part of the Manhattan Project, another team led by Enrico Fermi was able to initiate the first artificial self-sustained nuclear chain reaction, Chicago Pile-1. Working in a lab below the stands of Stagg Field at the University of Chicago, the team created the conditions needed for such a reaction by piling together 400 short tons (360 metric tons) of graphite, 58 short tons (53 metric tons) of uranium oxide, and six short tons (5.5 metric tons) of uranium metal, a majority of which was supplied by Westinghouse Lamp Plant in a makeshift production process. | On what date was the first self-sustained nuclear chain reaction created artificially? | On what date was the first self-sustained nuclear chain reaction created artificially? | [
"On what date was the first self-sustained nuclear chain reaction created artificially?"
] | {
"text": [
"2 December 1942"
],
"answer_start": [
3
]
} |
gem-squad_v2-train-17228 | 570e39580b85d914000d7da1 | Uranium | On 2 December 1942, as part of the Manhattan Project, another team led by Enrico Fermi was able to initiate the first artificial self-sustained nuclear chain reaction, Chicago Pile-1. Working in a lab below the stands of Stagg Field at the University of Chicago, the team created the conditions needed for such a reaction by piling together 400 short tons (360 metric tons) of graphite, 58 short tons (53 metric tons) of uranium oxide, and six short tons (5.5 metric tons) of uranium metal, a majority of which was supplied by Westinghouse Lamp Plant in a makeshift production process. | What project was Fermi working for? | What project was Fermi working for? | [
"What project was Fermi working for?"
] | {
"text": [
"Manhattan"
],
"answer_start": [
35
]
} |
gem-squad_v2-train-17229 | 570e39580b85d914000d7da2 | Uranium | On 2 December 1942, as part of the Manhattan Project, another team led by Enrico Fermi was able to initiate the first artificial self-sustained nuclear chain reaction, Chicago Pile-1. Working in a lab below the stands of Stagg Field at the University of Chicago, the team created the conditions needed for such a reaction by piling together 400 short tons (360 metric tons) of graphite, 58 short tons (53 metric tons) of uranium oxide, and six short tons (5.5 metric tons) of uranium metal, a majority of which was supplied by Westinghouse Lamp Plant in a makeshift production process. | On the campus of what educational institution was Chicago Pile-1 created? | On the campus of what educational institution was Chicago Pile-1 created? | [
"On the campus of what educational institution was Chicago Pile-1 created?"
] | {
"text": [
"University of Chicago"
],
"answer_start": [
240
]
} |
gem-squad_v2-train-17230 | 570e39580b85d914000d7da3 | Uranium | On 2 December 1942, as part of the Manhattan Project, another team led by Enrico Fermi was able to initiate the first artificial self-sustained nuclear chain reaction, Chicago Pile-1. Working in a lab below the stands of Stagg Field at the University of Chicago, the team created the conditions needed for such a reaction by piling together 400 short tons (360 metric tons) of graphite, 58 short tons (53 metric tons) of uranium oxide, and six short tons (5.5 metric tons) of uranium metal, a majority of which was supplied by Westinghouse Lamp Plant in a makeshift production process. | How many metric tons of uranium oxide was used in Chicago Pile-1? | How many metric tons of uranium oxide was used in Chicago Pile-1? | [
"How many metric tons of uranium oxide was used in Chicago Pile-1?"
] | {
"text": [
"53"
],
"answer_start": [
402
]
} |
gem-squad_v2-train-17231 | 5ad118da645df0001a2d0d50 | Uranium | On 2 December 1942, as part of the Manhattan Project, another team led by Enrico Fermi was able to initiate the first artificial self-sustained nuclear chain reaction, Chicago Pile-1. Working in a lab below the stands of Stagg Field at the University of Chicago, the team created the conditions needed for such a reaction by piling together 400 short tons (360 metric tons) of graphite, 58 short tons (53 metric tons) of uranium oxide, and six short tons (5.5 metric tons) of uranium metal, a majority of which was supplied by Westinghouse Lamp Plant in a makeshift production process. | What was the last self-sustained nuclear chain reaction created by human beings called? | What was the last self-sustained nuclear chain reaction created by human beings called? | [
"What was the last self-sustained nuclear chain reaction created by human beings called?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17232 | 5ad118da645df0001a2d0d51 | Uranium | On 2 December 1942, as part of the Manhattan Project, another team led by Enrico Fermi was able to initiate the first artificial self-sustained nuclear chain reaction, Chicago Pile-1. Working in a lab below the stands of Stagg Field at the University of Chicago, the team created the conditions needed for such a reaction by piling together 400 short tons (360 metric tons) of graphite, 58 short tons (53 metric tons) of uranium oxide, and six short tons (5.5 metric tons) of uranium metal, a majority of which was supplied by Westinghouse Lamp Plant in a makeshift production process. | On what date was the last self-sustained nuclear chain reaction created artificially? | On what date was the last self-sustained nuclear chain reaction created artificially? | [
"On what date was the last self-sustained nuclear chain reaction created artificially?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17233 | 5ad118da645df0001a2d0d52 | Uranium | On 2 December 1942, as part of the Manhattan Project, another team led by Enrico Fermi was able to initiate the first artificial self-sustained nuclear chain reaction, Chicago Pile-1. Working in a lab below the stands of Stagg Field at the University of Chicago, the team created the conditions needed for such a reaction by piling together 400 short tons (360 metric tons) of graphite, 58 short tons (53 metric tons) of uranium oxide, and six short tons (5.5 metric tons) of uranium metal, a majority of which was supplied by Westinghouse Lamp Plant in a makeshift production process. | What project wasn't Fermi working for? | What project wasn't Fermi working for? | [
"What project wasn't Fermi working for?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17234 | 5ad118da645df0001a2d0d53 | Uranium | On 2 December 1942, as part of the Manhattan Project, another team led by Enrico Fermi was able to initiate the first artificial self-sustained nuclear chain reaction, Chicago Pile-1. Working in a lab below the stands of Stagg Field at the University of Chicago, the team created the conditions needed for such a reaction by piling together 400 short tons (360 metric tons) of graphite, 58 short tons (53 metric tons) of uranium oxide, and six short tons (5.5 metric tons) of uranium metal, a majority of which was supplied by Westinghouse Lamp Plant in a makeshift production process. | On the campus of what educational institution was Chicago Pile-11 created? | On the campus of what educational institution was Chicago Pile-11 created? | [
"On the campus of what educational institution was Chicago Pile-11 created?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17235 | 5ad118da645df0001a2d0d54 | Uranium | On 2 December 1942, as part of the Manhattan Project, another team led by Enrico Fermi was able to initiate the first artificial self-sustained nuclear chain reaction, Chicago Pile-1. Working in a lab below the stands of Stagg Field at the University of Chicago, the team created the conditions needed for such a reaction by piling together 400 short tons (360 metric tons) of graphite, 58 short tons (53 metric tons) of uranium oxide, and six short tons (5.5 metric tons) of uranium metal, a majority of which was supplied by Westinghouse Lamp Plant in a makeshift production process. | How many metric tons of uranium oxide was used in Chicago Pile-21? | How many metric tons of uranium oxide was used in Chicago Pile-21? | [
"How many metric tons of uranium oxide was used in Chicago Pile-21?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17236 | 570e39bc0b85d914000d7da9 | Uranium | Uranium is used as a colorant in uranium glass producing orange-red to lemon yellow hues. It was also used for tinting and shading in early photography. The 1789 discovery of uranium in the mineral pitchblende is credited to Martin Heinrich Klaproth, who named the new element after the planet Uranus. Eugène-Melchior Péligot was the first person to isolate the metal and its radioactive properties were discovered in 1896 by Henri Becquerel. Research by Otto Hahn, Lise Meitner, Enrico Fermi and others, such as J. Robert Oppenheimer starting in 1934 led to its use as a fuel in the nuclear power industry and in Little Boy, the first nuclear weapon used in war. An ensuing arms race during the Cold War between the United States and the Soviet Union produced tens of thousands of nuclear weapons that used uranium metal and uranium-derived plutonium-239. The security of those weapons and their fissile material following the breakup of the Soviet Union in 1991 is an ongoing concern for public health and safety. See Nuclear proliferation. | Along with lemon yellow, what color is produced in uranium glass? | Along with lemon yellow, what color is produced in uranium glass? | [
"Along with lemon yellow, what color is produced in uranium glass?"
] | {
"text": [
"orange-red"
],
"answer_start": [
57
]
} |
gem-squad_v2-train-17237 | 570e39bc0b85d914000d7daa | Uranium | Uranium is used as a colorant in uranium glass producing orange-red to lemon yellow hues. It was also used for tinting and shading in early photography. The 1789 discovery of uranium in the mineral pitchblende is credited to Martin Heinrich Klaproth, who named the new element after the planet Uranus. Eugène-Melchior Péligot was the first person to isolate the metal and its radioactive properties were discovered in 1896 by Henri Becquerel. Research by Otto Hahn, Lise Meitner, Enrico Fermi and others, such as J. Robert Oppenheimer starting in 1934 led to its use as a fuel in the nuclear power industry and in Little Boy, the first nuclear weapon used in war. An ensuing arms race during the Cold War between the United States and the Soviet Union produced tens of thousands of nuclear weapons that used uranium metal and uranium-derived plutonium-239. The security of those weapons and their fissile material following the breakup of the Soviet Union in 1991 is an ongoing concern for public health and safety. See Nuclear proliferation. | Who discovered uranium in pitchblende? | Who discovered uranium in pitchblende? | [
"Who discovered uranium in pitchblende?"
] | {
"text": [
"Martin Heinrich Klaproth"
],
"answer_start": [
225
]
} |
gem-squad_v2-train-17238 | 570e39bc0b85d914000d7dab | Uranium | Uranium is used as a colorant in uranium glass producing orange-red to lemon yellow hues. It was also used for tinting and shading in early photography. The 1789 discovery of uranium in the mineral pitchblende is credited to Martin Heinrich Klaproth, who named the new element after the planet Uranus. Eugène-Melchior Péligot was the first person to isolate the metal and its radioactive properties were discovered in 1896 by Henri Becquerel. Research by Otto Hahn, Lise Meitner, Enrico Fermi and others, such as J. Robert Oppenheimer starting in 1934 led to its use as a fuel in the nuclear power industry and in Little Boy, the first nuclear weapon used in war. An ensuing arms race during the Cold War between the United States and the Soviet Union produced tens of thousands of nuclear weapons that used uranium metal and uranium-derived plutonium-239. The security of those weapons and their fissile material following the breakup of the Soviet Union in 1991 is an ongoing concern for public health and safety. See Nuclear proliferation. | Who was responsible for first isolating uranium? | Who was responsible for first isolating uranium? | [
"Who was responsible for first isolating uranium?"
] | {
"text": [
"Eugène-Melchior Péligot"
],
"answer_start": [
302
]
} |
gem-squad_v2-train-17239 | 570e39bc0b85d914000d7dac | Uranium | Uranium is used as a colorant in uranium glass producing orange-red to lemon yellow hues. It was also used for tinting and shading in early photography. The 1789 discovery of uranium in the mineral pitchblende is credited to Martin Heinrich Klaproth, who named the new element after the planet Uranus. Eugène-Melchior Péligot was the first person to isolate the metal and its radioactive properties were discovered in 1896 by Henri Becquerel. Research by Otto Hahn, Lise Meitner, Enrico Fermi and others, such as J. Robert Oppenheimer starting in 1934 led to its use as a fuel in the nuclear power industry and in Little Boy, the first nuclear weapon used in war. An ensuing arms race during the Cold War between the United States and the Soviet Union produced tens of thousands of nuclear weapons that used uranium metal and uranium-derived plutonium-239. The security of those weapons and their fissile material following the breakup of the Soviet Union in 1991 is an ongoing concern for public health and safety. See Nuclear proliferation. | Who discovered that uranium was radioactive? | Who discovered that uranium was radioactive? | [
"Who discovered that uranium was radioactive?"
] | {
"text": [
"Henri Becquerel"
],
"answer_start": [
426
]
} |
gem-squad_v2-train-17240 | 570e39bc0b85d914000d7dad | Uranium | Uranium is used as a colorant in uranium glass producing orange-red to lemon yellow hues. It was also used for tinting and shading in early photography. The 1789 discovery of uranium in the mineral pitchblende is credited to Martin Heinrich Klaproth, who named the new element after the planet Uranus. Eugène-Melchior Péligot was the first person to isolate the metal and its radioactive properties were discovered in 1896 by Henri Becquerel. Research by Otto Hahn, Lise Meitner, Enrico Fermi and others, such as J. Robert Oppenheimer starting in 1934 led to its use as a fuel in the nuclear power industry and in Little Boy, the first nuclear weapon used in war. An ensuing arms race during the Cold War between the United States and the Soviet Union produced tens of thousands of nuclear weapons that used uranium metal and uranium-derived plutonium-239. The security of those weapons and their fissile material following the breakup of the Soviet Union in 1991 is an ongoing concern for public health and safety. See Nuclear proliferation. | What was the first nuclear weapon used in a war called? | What was the first nuclear weapon used in a war called? | [
"What was the first nuclear weapon used in a war called?"
] | {
"text": [
"Little Boy"
],
"answer_start": [
614
]
} |
gem-squad_v2-train-17241 | 5ad112ae645df0001a2d0c3a | Uranium | Uranium is used as a colorant in uranium glass producing orange-red to lemon yellow hues. It was also used for tinting and shading in early photography. The 1789 discovery of uranium in the mineral pitchblende is credited to Martin Heinrich Klaproth, who named the new element after the planet Uranus. Eugène-Melchior Péligot was the first person to isolate the metal and its radioactive properties were discovered in 1896 by Henri Becquerel. Research by Otto Hahn, Lise Meitner, Enrico Fermi and others, such as J. Robert Oppenheimer starting in 1934 led to its use as a fuel in the nuclear power industry and in Little Boy, the first nuclear weapon used in war. An ensuing arms race during the Cold War between the United States and the Soviet Union produced tens of thousands of nuclear weapons that used uranium metal and uranium-derived plutonium-239. The security of those weapons and their fissile material following the breakup of the Soviet Union in 1991 is an ongoing concern for public health and safety. See Nuclear proliferation. | Along with lemon yellow, what color is produced in uranium plastic? | Along with lemon yellow, what color is produced in uranium plastic? | [
"Along with lemon yellow, what color is produced in uranium plastic?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17242 | 5ad112ae645df0001a2d0c3b | Uranium | Uranium is used as a colorant in uranium glass producing orange-red to lemon yellow hues. It was also used for tinting and shading in early photography. The 1789 discovery of uranium in the mineral pitchblende is credited to Martin Heinrich Klaproth, who named the new element after the planet Uranus. Eugène-Melchior Péligot was the first person to isolate the metal and its radioactive properties were discovered in 1896 by Henri Becquerel. Research by Otto Hahn, Lise Meitner, Enrico Fermi and others, such as J. Robert Oppenheimer starting in 1934 led to its use as a fuel in the nuclear power industry and in Little Boy, the first nuclear weapon used in war. An ensuing arms race during the Cold War between the United States and the Soviet Union produced tens of thousands of nuclear weapons that used uranium metal and uranium-derived plutonium-239. The security of those weapons and their fissile material following the breakup of the Soviet Union in 1991 is an ongoing concern for public health and safety. See Nuclear proliferation. | Who never discovered uranium in pitchblende? | Who never discovered uranium in pitchblende? | [
"Who never discovered uranium in pitchblende?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17243 | 5ad112ae645df0001a2d0c3c | Uranium | Uranium is used as a colorant in uranium glass producing orange-red to lemon yellow hues. It was also used for tinting and shading in early photography. The 1789 discovery of uranium in the mineral pitchblende is credited to Martin Heinrich Klaproth, who named the new element after the planet Uranus. Eugène-Melchior Péligot was the first person to isolate the metal and its radioactive properties were discovered in 1896 by Henri Becquerel. Research by Otto Hahn, Lise Meitner, Enrico Fermi and others, such as J. Robert Oppenheimer starting in 1934 led to its use as a fuel in the nuclear power industry and in Little Boy, the first nuclear weapon used in war. An ensuing arms race during the Cold War between the United States and the Soviet Union produced tens of thousands of nuclear weapons that used uranium metal and uranium-derived plutonium-239. The security of those weapons and their fissile material following the breakup of the Soviet Union in 1991 is an ongoing concern for public health and safety. See Nuclear proliferation. | Who was responsible for last isolating uranium? | Who was responsible for last isolating uranium? | [
"Who was responsible for last isolating uranium?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17244 | 5ad112ae645df0001a2d0c3d | Uranium | Uranium is used as a colorant in uranium glass producing orange-red to lemon yellow hues. It was also used for tinting and shading in early photography. The 1789 discovery of uranium in the mineral pitchblende is credited to Martin Heinrich Klaproth, who named the new element after the planet Uranus. Eugène-Melchior Péligot was the first person to isolate the metal and its radioactive properties were discovered in 1896 by Henri Becquerel. Research by Otto Hahn, Lise Meitner, Enrico Fermi and others, such as J. Robert Oppenheimer starting in 1934 led to its use as a fuel in the nuclear power industry and in Little Boy, the first nuclear weapon used in war. An ensuing arms race during the Cold War between the United States and the Soviet Union produced tens of thousands of nuclear weapons that used uranium metal and uranium-derived plutonium-239. The security of those weapons and their fissile material following the breakup of the Soviet Union in 1991 is an ongoing concern for public health and safety. See Nuclear proliferation. | Who discovered that uranium wasn't radioactive? | Who discovered that uranium wasn't radioactive? | [
"Who discovered that uranium wasn't radioactive?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17245 | 5ad112ae645df0001a2d0c3e | Uranium | Uranium is used as a colorant in uranium glass producing orange-red to lemon yellow hues. It was also used for tinting and shading in early photography. The 1789 discovery of uranium in the mineral pitchblende is credited to Martin Heinrich Klaproth, who named the new element after the planet Uranus. Eugène-Melchior Péligot was the first person to isolate the metal and its radioactive properties were discovered in 1896 by Henri Becquerel. Research by Otto Hahn, Lise Meitner, Enrico Fermi and others, such as J. Robert Oppenheimer starting in 1934 led to its use as a fuel in the nuclear power industry and in Little Boy, the first nuclear weapon used in war. An ensuing arms race during the Cold War between the United States and the Soviet Union produced tens of thousands of nuclear weapons that used uranium metal and uranium-derived plutonium-239. The security of those weapons and their fissile material following the breakup of the Soviet Union in 1991 is an ongoing concern for public health and safety. See Nuclear proliferation. | What was the last nuclear weapon used in a war called? | What was the last nuclear weapon used in a war called? | [
"What was the last nuclear weapon used in a war called?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17246 | 570e3a8a0dc6ce1900204eb9 | Uranium | In nature, uranium is found as uranium-238 (99.2742%) and uranium-235 (0.7204%). Isotope separation concentrates (enriches) the fissionable uranium-235 for nuclear weapons and most nuclear power plants, except for gas cooled reactors and pressurised heavy water reactors. Most neutrons released by a fissioning atom of uranium-235 must impact other uranium-235 atoms to sustain the nuclear chain reaction. The concentration and amount of uranium-235 needed to achieve this is called a 'critical mass'. | What percentage of uranium in nature is uranium-235? | What percentage of uranium in nature is uranium-235? | [
"What percentage of uranium in nature is uranium-235?"
] | {
"text": [
"0.7204%"
],
"answer_start": [
71
]
} |
gem-squad_v2-train-17247 | 570e3a8a0dc6ce1900204eba | Uranium | In nature, uranium is found as uranium-238 (99.2742%) and uranium-235 (0.7204%). Isotope separation concentrates (enriches) the fissionable uranium-235 for nuclear weapons and most nuclear power plants, except for gas cooled reactors and pressurised heavy water reactors. Most neutrons released by a fissioning atom of uranium-235 must impact other uranium-235 atoms to sustain the nuclear chain reaction. The concentration and amount of uranium-235 needed to achieve this is called a 'critical mass'. | What is the most prevalent natural isotope of uranium? | What is the most prevalent natural isotope of uranium? | [
"What is the most prevalent natural isotope of uranium?"
] | {
"text": [
"uranium-238"
],
"answer_start": [
31
]
} |
gem-squad_v2-train-17248 | 570e3a8a0dc6ce1900204ebb | Uranium | In nature, uranium is found as uranium-238 (99.2742%) and uranium-235 (0.7204%). Isotope separation concentrates (enriches) the fissionable uranium-235 for nuclear weapons and most nuclear power plants, except for gas cooled reactors and pressurised heavy water reactors. Most neutrons released by a fissioning atom of uranium-235 must impact other uranium-235 atoms to sustain the nuclear chain reaction. The concentration and amount of uranium-235 needed to achieve this is called a 'critical mass'. | What is the term for the amount of uranium-235 needed to sustain a nuclear chain reaction? | What is the term for the amount of uranium-235 needed to sustain a nuclear chain reaction? | [
"What is the term for the amount of uranium-235 needed to sustain a nuclear chain reaction?"
] | {
"text": [
"critical mass"
],
"answer_start": [
486
]
} |
gem-squad_v2-train-17249 | 570e3a8a0dc6ce1900204ebc | Uranium | In nature, uranium is found as uranium-238 (99.2742%) and uranium-235 (0.7204%). Isotope separation concentrates (enriches) the fissionable uranium-235 for nuclear weapons and most nuclear power plants, except for gas cooled reactors and pressurised heavy water reactors. Most neutrons released by a fissioning atom of uranium-235 must impact other uranium-235 atoms to sustain the nuclear chain reaction. The concentration and amount of uranium-235 needed to achieve this is called a 'critical mass'. | What percentage of natural uranium is isotope 238? | What percentage of natural uranium is isotope 238? | [
"What percentage of natural uranium is isotope 238?"
] | {
"text": [
"99.2742%"
],
"answer_start": [
44
]
} |
gem-squad_v2-train-17250 | 570e3a8a0dc6ce1900204ebd | Uranium | In nature, uranium is found as uranium-238 (99.2742%) and uranium-235 (0.7204%). Isotope separation concentrates (enriches) the fissionable uranium-235 for nuclear weapons and most nuclear power plants, except for gas cooled reactors and pressurised heavy water reactors. Most neutrons released by a fissioning atom of uranium-235 must impact other uranium-235 atoms to sustain the nuclear chain reaction. The concentration and amount of uranium-235 needed to achieve this is called a 'critical mass'. | Along with gas cooled reactors, what type of reactor doesn't use uranium-235? | Along with gas cooled reactors, what type of reactor doesn't use uranium-235? | [
"Along with gas cooled reactors, what type of reactor doesn't use uranium-235?"
] | {
"text": [
"pressurised heavy water"
],
"answer_start": [
238
]
} |
gem-squad_v2-train-17251 | 5ad14ea1645df0001a2d16e8 | Uranium | In nature, uranium is found as uranium-238 (99.2742%) and uranium-235 (0.7204%). Isotope separation concentrates (enriches) the fissionable uranium-235 for nuclear weapons and most nuclear power plants, except for gas cooled reactors and pressurised heavy water reactors. Most neutrons released by a fissioning atom of uranium-235 must impact other uranium-235 atoms to sustain the nuclear chain reaction. The concentration and amount of uranium-235 needed to achieve this is called a 'critical mass'. | What percentage of uranium in nature is uranium-335? | What percentage of uranium in nature is uranium-335? | [
"What percentage of uranium in nature is uranium-335?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17252 | 5ad14ea1645df0001a2d16e9 | Uranium | In nature, uranium is found as uranium-238 (99.2742%) and uranium-235 (0.7204%). Isotope separation concentrates (enriches) the fissionable uranium-235 for nuclear weapons and most nuclear power plants, except for gas cooled reactors and pressurised heavy water reactors. Most neutrons released by a fissioning atom of uranium-235 must impact other uranium-235 atoms to sustain the nuclear chain reaction. The concentration and amount of uranium-235 needed to achieve this is called a 'critical mass'. | What is the most prevalent unnatural isotope of uranium? | What is the most prevalent unnatural isotope of uranium? | [
"What is the most prevalent unnatural isotope of uranium?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17253 | 5ad14ea1645df0001a2d16ea | Uranium | In nature, uranium is found as uranium-238 (99.2742%) and uranium-235 (0.7204%). Isotope separation concentrates (enriches) the fissionable uranium-235 for nuclear weapons and most nuclear power plants, except for gas cooled reactors and pressurised heavy water reactors. Most neutrons released by a fissioning atom of uranium-235 must impact other uranium-235 atoms to sustain the nuclear chain reaction. The concentration and amount of uranium-235 needed to achieve this is called a 'critical mass'. | What is the term for the amount of uranium-335 needed to sustain a nuclear chain reaction? | What is the term for the amount of uranium-335 needed to sustain a nuclear chain reaction? | [
"What is the term for the amount of uranium-335 needed to sustain a nuclear chain reaction?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17254 | 5ad14ea1645df0001a2d16eb | Uranium | In nature, uranium is found as uranium-238 (99.2742%) and uranium-235 (0.7204%). Isotope separation concentrates (enriches) the fissionable uranium-235 for nuclear weapons and most nuclear power plants, except for gas cooled reactors and pressurised heavy water reactors. Most neutrons released by a fissioning atom of uranium-235 must impact other uranium-235 atoms to sustain the nuclear chain reaction. The concentration and amount of uranium-235 needed to achieve this is called a 'critical mass'. | What percentage of unnatural uranium is isotope 238? | What percentage of unnatural uranium is isotope 238? | [
"What percentage of unnatural uranium is isotope 238?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17255 | 5ad14ea1645df0001a2d16ec | Uranium | In nature, uranium is found as uranium-238 (99.2742%) and uranium-235 (0.7204%). Isotope separation concentrates (enriches) the fissionable uranium-235 for nuclear weapons and most nuclear power plants, except for gas cooled reactors and pressurised heavy water reactors. Most neutrons released by a fissioning atom of uranium-235 must impact other uranium-235 atoms to sustain the nuclear chain reaction. The concentration and amount of uranium-235 needed to achieve this is called a 'critical mass'. | Along with gas heated reactors, what type of reactor doesn't use uranium-235? | Along with gas heated reactors, what type of reactor doesn't use uranium-235? | [
"Along with gas heated reactors, what type of reactor doesn't use uranium-235?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17256 | 570e432f0dc6ce1900204ee1 | Uranium | The major application of uranium in the military sector is in high-density penetrators. This ammunition consists of depleted uranium (DU) alloyed with 1–2% other elements, such as titanium or molybdenum. At high impact speed, the density, hardness, and pyrophoricity of the projectile enable the destruction of heavily armored targets. Tank armor and other removable vehicle armor can also be hardened with depleted uranium plates. The use of depleted uranium became politically and environmentally contentious after the use of such munitions by the US, UK and other countries during wars in the Persian Gulf and the Balkans raised questions concerning uranium compounds left in the soil (see Gulf War Syndrome). | What is uranium used for most often in the military? | What is uranium used for most often in the military? | [
"What is uranium used for most often in the military?"
] | {
"text": [
"high-density penetrators"
],
"answer_start": [
62
]
} |
gem-squad_v2-train-17257 | 570e432f0dc6ce1900204ee2 | Uranium | The major application of uranium in the military sector is in high-density penetrators. This ammunition consists of depleted uranium (DU) alloyed with 1–2% other elements, such as titanium or molybdenum. At high impact speed, the density, hardness, and pyrophoricity of the projectile enable the destruction of heavily armored targets. Tank armor and other removable vehicle armor can also be hardened with depleted uranium plates. The use of depleted uranium became politically and environmentally contentious after the use of such munitions by the US, UK and other countries during wars in the Persian Gulf and the Balkans raised questions concerning uranium compounds left in the soil (see Gulf War Syndrome). | What percentage of high-density penetrators is not made up of depleted uranium? | What percentage of high-density penetrators is not made up of depleted uranium? | [
"What percentage of high-density penetrators is not made up of depleted uranium?"
] | {
"text": [
"1–2%"
],
"answer_start": [
151
]
} |
gem-squad_v2-train-17258 | 570e432f0dc6ce1900204ee3 | Uranium | The major application of uranium in the military sector is in high-density penetrators. This ammunition consists of depleted uranium (DU) alloyed with 1–2% other elements, such as titanium or molybdenum. At high impact speed, the density, hardness, and pyrophoricity of the projectile enable the destruction of heavily armored targets. Tank armor and other removable vehicle armor can also be hardened with depleted uranium plates. The use of depleted uranium became politically and environmentally contentious after the use of such munitions by the US, UK and other countries during wars in the Persian Gulf and the Balkans raised questions concerning uranium compounds left in the soil (see Gulf War Syndrome). | Along with titanium, what element often makes up the portion of high-density penetrators not made of depleted uranium? | Along with titanium, what element often makes up the portion of high-density penetrators not made of depleted uranium? | [
"Along with titanium, what element often makes up the portion of high-density penetrators not made of depleted uranium?"
] | {
"text": [
"molybdenum"
],
"answer_start": [
192
]
} |
gem-squad_v2-train-17259 | 570e432f0dc6ce1900204ee4 | Uranium | The major application of uranium in the military sector is in high-density penetrators. This ammunition consists of depleted uranium (DU) alloyed with 1–2% other elements, such as titanium or molybdenum. At high impact speed, the density, hardness, and pyrophoricity of the projectile enable the destruction of heavily armored targets. Tank armor and other removable vehicle armor can also be hardened with depleted uranium plates. The use of depleted uranium became politically and environmentally contentious after the use of such munitions by the US, UK and other countries during wars in the Persian Gulf and the Balkans raised questions concerning uranium compounds left in the soil (see Gulf War Syndrome). | Along with the Balkans, in what geographical location did a war take place where the UK used depleted uranium munitions? | Along with the Balkans, in what geographical location did a war take place where the UK used depleted uranium munitions? | [
"Along with the Balkans, in what geographical location did a war take place where the UK used depleted uranium munitions?"
] | {
"text": [
"Persian Gulf"
],
"answer_start": [
596
]
} |
gem-squad_v2-train-17260 | 570e432f0dc6ce1900204ee5 | Uranium | The major application of uranium in the military sector is in high-density penetrators. This ammunition consists of depleted uranium (DU) alloyed with 1–2% other elements, such as titanium or molybdenum. At high impact speed, the density, hardness, and pyrophoricity of the projectile enable the destruction of heavily armored targets. Tank armor and other removable vehicle armor can also be hardened with depleted uranium plates. The use of depleted uranium became politically and environmentally contentious after the use of such munitions by the US, UK and other countries during wars in the Persian Gulf and the Balkans raised questions concerning uranium compounds left in the soil (see Gulf War Syndrome). | What illness is possibly tied to the use of depleted uranium munitions? | What illness is possibly tied to the use of depleted uranium munitions? | [
"What illness is possibly tied to the use of depleted uranium munitions?"
] | {
"text": [
"Gulf War Syndrome"
],
"answer_start": [
693
]
} |
gem-squad_v2-train-17261 | 5ad113dc645df0001a2d0c8a | Uranium | The major application of uranium in the military sector is in high-density penetrators. This ammunition consists of depleted uranium (DU) alloyed with 1–2% other elements, such as titanium or molybdenum. At high impact speed, the density, hardness, and pyrophoricity of the projectile enable the destruction of heavily armored targets. Tank armor and other removable vehicle armor can also be hardened with depleted uranium plates. The use of depleted uranium became politically and environmentally contentious after the use of such munitions by the US, UK and other countries during wars in the Persian Gulf and the Balkans raised questions concerning uranium compounds left in the soil (see Gulf War Syndrome). | What is uranium used for least often in the military? | What is uranium used for least often in the military? | [
"What is uranium used for least often in the military?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17262 | 5ad113dc645df0001a2d0c8b | Uranium | The major application of uranium in the military sector is in high-density penetrators. This ammunition consists of depleted uranium (DU) alloyed with 1–2% other elements, such as titanium or molybdenum. At high impact speed, the density, hardness, and pyrophoricity of the projectile enable the destruction of heavily armored targets. Tank armor and other removable vehicle armor can also be hardened with depleted uranium plates. The use of depleted uranium became politically and environmentally contentious after the use of such munitions by the US, UK and other countries during wars in the Persian Gulf and the Balkans raised questions concerning uranium compounds left in the soil (see Gulf War Syndrome). | What percentage of low-density penetrators is not made up of depleted uranium? | What percentage of low-density penetrators is not made up of depleted uranium? | [
"What percentage of low-density penetrators is not made up of depleted uranium?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17263 | 5ad113dc645df0001a2d0c8c | Uranium | The major application of uranium in the military sector is in high-density penetrators. This ammunition consists of depleted uranium (DU) alloyed with 1–2% other elements, such as titanium or molybdenum. At high impact speed, the density, hardness, and pyrophoricity of the projectile enable the destruction of heavily armored targets. Tank armor and other removable vehicle armor can also be hardened with depleted uranium plates. The use of depleted uranium became politically and environmentally contentious after the use of such munitions by the US, UK and other countries during wars in the Persian Gulf and the Balkans raised questions concerning uranium compounds left in the soil (see Gulf War Syndrome). | Along with titanium, what element rarely makes up the portion of high-density penetrators not made of depleted uranium? | Along with titanium, what element rarely makes up the portion of high-density penetrators not made of depleted uranium? | [
"Along with titanium, what element rarely makes up the portion of high-density penetrators not made of depleted uranium?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17264 | 5ad113dc645df0001a2d0c8d | Uranium | The major application of uranium in the military sector is in high-density penetrators. This ammunition consists of depleted uranium (DU) alloyed with 1–2% other elements, such as titanium or molybdenum. At high impact speed, the density, hardness, and pyrophoricity of the projectile enable the destruction of heavily armored targets. Tank armor and other removable vehicle armor can also be hardened with depleted uranium plates. The use of depleted uranium became politically and environmentally contentious after the use of such munitions by the US, UK and other countries during wars in the Persian Gulf and the Balkans raised questions concerning uranium compounds left in the soil (see Gulf War Syndrome). | Along with the Balkans, in what geographical location did a war take place where the UN used depleted uranium munitions? | Along with the Balkans, in what geographical location did a war take place where the UN used depleted uranium munitions? | [
"Along with the Balkans, in what geographical location did a war take place where the UN used depleted uranium munitions?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17265 | 5ad113dc645df0001a2d0c8e | Uranium | The major application of uranium in the military sector is in high-density penetrators. This ammunition consists of depleted uranium (DU) alloyed with 1–2% other elements, such as titanium or molybdenum. At high impact speed, the density, hardness, and pyrophoricity of the projectile enable the destruction of heavily armored targets. Tank armor and other removable vehicle armor can also be hardened with depleted uranium plates. The use of depleted uranium became politically and environmentally contentious after the use of such munitions by the US, UK and other countries during wars in the Persian Gulf and the Balkans raised questions concerning uranium compounds left in the soil (see Gulf War Syndrome). | What illness is definitely tied to the use of depleted uranium munitions? | What illness is definitely tied to the use of depleted uranium munitions? | [
"What illness is definitely tied to the use of depleted uranium munitions?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17266 | 570e437d0dc6ce1900204eeb | Uranium | The discovery of the element is credited to the German chemist Martin Heinrich Klaproth. While he was working in his experimental laboratory in Berlin in 1789, Klaproth was able to precipitate a yellow compound (likely sodium diuranate) by dissolving pitchblende in nitric acid and neutralizing the solution with sodium hydroxide. Klaproth assumed the yellow substance was the oxide of a yet-undiscovered element and heated it with charcoal to obtain a black powder, which he thought was the newly discovered metal itself (in fact, that powder was an oxide of uranium). He named the newly discovered element after the planet Uranus, (named after the primordial Greek god of the sky), which had been discovered eight years earlier by William Herschel. | Who discovered uranium? | Who discovered uranium? | [
"Who discovered uranium?"
] | {
"text": [
"Martin Heinrich Klaproth"
],
"answer_start": [
63
]
} |
gem-squad_v2-train-17267 | 570e437d0dc6ce1900204eec | Uranium | The discovery of the element is credited to the German chemist Martin Heinrich Klaproth. While he was working in his experimental laboratory in Berlin in 1789, Klaproth was able to precipitate a yellow compound (likely sodium diuranate) by dissolving pitchblende in nitric acid and neutralizing the solution with sodium hydroxide. Klaproth assumed the yellow substance was the oxide of a yet-undiscovered element and heated it with charcoal to obtain a black powder, which he thought was the newly discovered metal itself (in fact, that powder was an oxide of uranium). He named the newly discovered element after the planet Uranus, (named after the primordial Greek god of the sky), which had been discovered eight years earlier by William Herschel. | In what city was uranium discovered? | In what city was uranium discovered? | [
"In what city was uranium discovered?"
] | {
"text": [
"Berlin"
],
"answer_start": [
144
]
} |
gem-squad_v2-train-17268 | 570e437d0dc6ce1900204eed | Uranium | The discovery of the element is credited to the German chemist Martin Heinrich Klaproth. While he was working in his experimental laboratory in Berlin in 1789, Klaproth was able to precipitate a yellow compound (likely sodium diuranate) by dissolving pitchblende in nitric acid and neutralizing the solution with sodium hydroxide. Klaproth assumed the yellow substance was the oxide of a yet-undiscovered element and heated it with charcoal to obtain a black powder, which he thought was the newly discovered metal itself (in fact, that powder was an oxide of uranium). He named the newly discovered element after the planet Uranus, (named after the primordial Greek god of the sky), which had been discovered eight years earlier by William Herschel. | In what year did the discovery of uranium occur? | In what year did the discovery of uranium occur? | [
"In what year did the discovery of uranium occur?"
] | {
"text": [
"1789"
],
"answer_start": [
154
]
} |
gem-squad_v2-train-17269 | 570e437d0dc6ce1900204eee | Uranium | The discovery of the element is credited to the German chemist Martin Heinrich Klaproth. While he was working in his experimental laboratory in Berlin in 1789, Klaproth was able to precipitate a yellow compound (likely sodium diuranate) by dissolving pitchblende in nitric acid and neutralizing the solution with sodium hydroxide. Klaproth assumed the yellow substance was the oxide of a yet-undiscovered element and heated it with charcoal to obtain a black powder, which he thought was the newly discovered metal itself (in fact, that powder was an oxide of uranium). He named the newly discovered element after the planet Uranus, (named after the primordial Greek god of the sky), which had been discovered eight years earlier by William Herschel. | What did Klaproth probably create when he dissolved pitchblende in nitric acid? | What did Klaproth probably create when he dissolved pitchblende in nitric acid? | [
"What did Klaproth probably create when he dissolved pitchblende in nitric acid?"
] | {
"text": [
"sodium diuranate"
],
"answer_start": [
219
]
} |
gem-squad_v2-train-17270 | 570e437d0dc6ce1900204eef | Uranium | The discovery of the element is credited to the German chemist Martin Heinrich Klaproth. While he was working in his experimental laboratory in Berlin in 1789, Klaproth was able to precipitate a yellow compound (likely sodium diuranate) by dissolving pitchblende in nitric acid and neutralizing the solution with sodium hydroxide. Klaproth assumed the yellow substance was the oxide of a yet-undiscovered element and heated it with charcoal to obtain a black powder, which he thought was the newly discovered metal itself (in fact, that powder was an oxide of uranium). He named the newly discovered element after the planet Uranus, (named after the primordial Greek god of the sky), which had been discovered eight years earlier by William Herschel. | Who discovered the planet Uranus? | Who discovered the planet Uranus? | [
"Who discovered the planet Uranus?"
] | {
"text": [
"William Herschel"
],
"answer_start": [
733
]
} |
gem-squad_v2-train-17271 | 5ad1171b645df0001a2d0d28 | Uranium | The discovery of the element is credited to the German chemist Martin Heinrich Klaproth. While he was working in his experimental laboratory in Berlin in 1789, Klaproth was able to precipitate a yellow compound (likely sodium diuranate) by dissolving pitchblende in nitric acid and neutralizing the solution with sodium hydroxide. Klaproth assumed the yellow substance was the oxide of a yet-undiscovered element and heated it with charcoal to obtain a black powder, which he thought was the newly discovered metal itself (in fact, that powder was an oxide of uranium). He named the newly discovered element after the planet Uranus, (named after the primordial Greek god of the sky), which had been discovered eight years earlier by William Herschel. | Who discovered plutonium? | Who discovered plutonium? | [
"Who discovered plutonium?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17272 | 5ad1171b645df0001a2d0d29 | Uranium | The discovery of the element is credited to the German chemist Martin Heinrich Klaproth. While he was working in his experimental laboratory in Berlin in 1789, Klaproth was able to precipitate a yellow compound (likely sodium diuranate) by dissolving pitchblende in nitric acid and neutralizing the solution with sodium hydroxide. Klaproth assumed the yellow substance was the oxide of a yet-undiscovered element and heated it with charcoal to obtain a black powder, which he thought was the newly discovered metal itself (in fact, that powder was an oxide of uranium). He named the newly discovered element after the planet Uranus, (named after the primordial Greek god of the sky), which had been discovered eight years earlier by William Herschel. | n what city wasn't uranium discovered? | n what city wasn't uranium discovered? | [
"n what city wasn't uranium discovered?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17273 | 5ad1171b645df0001a2d0d2a | Uranium | The discovery of the element is credited to the German chemist Martin Heinrich Klaproth. While he was working in his experimental laboratory in Berlin in 1789, Klaproth was able to precipitate a yellow compound (likely sodium diuranate) by dissolving pitchblende in nitric acid and neutralizing the solution with sodium hydroxide. Klaproth assumed the yellow substance was the oxide of a yet-undiscovered element and heated it with charcoal to obtain a black powder, which he thought was the newly discovered metal itself (in fact, that powder was an oxide of uranium). He named the newly discovered element after the planet Uranus, (named after the primordial Greek god of the sky), which had been discovered eight years earlier by William Herschel. | In what year didn't the discovery of uranium occur? | In what year didn't the discovery of uranium occur? | [
"In what year didn't the discovery of uranium occur?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17274 | 5ad1171b645df0001a2d0d2b | Uranium | The discovery of the element is credited to the German chemist Martin Heinrich Klaproth. While he was working in his experimental laboratory in Berlin in 1789, Klaproth was able to precipitate a yellow compound (likely sodium diuranate) by dissolving pitchblende in nitric acid and neutralizing the solution with sodium hydroxide. Klaproth assumed the yellow substance was the oxide of a yet-undiscovered element and heated it with charcoal to obtain a black powder, which he thought was the newly discovered metal itself (in fact, that powder was an oxide of uranium). He named the newly discovered element after the planet Uranus, (named after the primordial Greek god of the sky), which had been discovered eight years earlier by William Herschel. | What did Klaproth definitely create when he dissolved pitchblende in nitric acid? | What did Klaproth definitely create when he dissolved pitchblende in nitric acid? | [
"What did Klaproth definitely create when he dissolved pitchblende in nitric acid?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17275 | 5ad1171b645df0001a2d0d2c | Uranium | The discovery of the element is credited to the German chemist Martin Heinrich Klaproth. While he was working in his experimental laboratory in Berlin in 1789, Klaproth was able to precipitate a yellow compound (likely sodium diuranate) by dissolving pitchblende in nitric acid and neutralizing the solution with sodium hydroxide. Klaproth assumed the yellow substance was the oxide of a yet-undiscovered element and heated it with charcoal to obtain a black powder, which he thought was the newly discovered metal itself (in fact, that powder was an oxide of uranium). He named the newly discovered element after the planet Uranus, (named after the primordial Greek god of the sky), which had been discovered eight years earlier by William Herschel. | Who never discovered the planet Uranus? | Who never discovered the planet Uranus? | [
"Who never discovered the planet Uranus?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17276 | 570e43e60dc6ce1900204ef5 | Uranium | Uranium ore is mined in several ways: by open pit, underground, in-situ leaching, and borehole mining (see uranium mining). Low-grade uranium ore mined typically contains 0.01 to 0.25% uranium oxides. Extensive measures must be employed to extract the metal from its ore. High-grade ores found in Athabasca Basin deposits in Saskatchewan, Canada can contain up to 23% uranium oxides on average. Uranium ore is crushed and rendered into a fine powder and then leached with either an acid or alkali. The leachate is subjected to one of several sequences of precipitation, solvent extraction, and ion exchange. The resulting mixture, called yellowcake, contains at least 75% uranium oxides U3O8. Yellowcake is then calcined to remove impurities from the milling process before refining and conversion. | What percentage range of uranium oxide is usually contained in low-grade uranium ore? | What percentage range of uranium oxide is usually contained in low-grade uranium ore? | [
"What percentage range of uranium oxide is usually contained in low-grade uranium ore?"
] | {
"text": [
"0.01 to 0.25%"
],
"answer_start": [
171
]
} |
gem-squad_v2-train-17277 | 570e43e60dc6ce1900204ef6 | Uranium | Uranium ore is mined in several ways: by open pit, underground, in-situ leaching, and borehole mining (see uranium mining). Low-grade uranium ore mined typically contains 0.01 to 0.25% uranium oxides. Extensive measures must be employed to extract the metal from its ore. High-grade ores found in Athabasca Basin deposits in Saskatchewan, Canada can contain up to 23% uranium oxides on average. Uranium ore is crushed and rendered into a fine powder and then leached with either an acid or alkali. The leachate is subjected to one of several sequences of precipitation, solvent extraction, and ion exchange. The resulting mixture, called yellowcake, contains at least 75% uranium oxides U3O8. Yellowcake is then calcined to remove impurities from the milling process before refining and conversion. | Along with underground, open pit and in-situ leaching, what sort of mining is used to mine uranium? | Along with underground, open pit and in-situ leaching, what sort of mining is used to mine uranium? | [
"Along with underground, open pit and in-situ leaching, what sort of mining is used to mine uranium?"
] | {
"text": [
"borehole"
],
"answer_start": [
86
]
} |
gem-squad_v2-train-17278 | 570e43e60dc6ce1900204ef7 | Uranium | Uranium ore is mined in several ways: by open pit, underground, in-situ leaching, and borehole mining (see uranium mining). Low-grade uranium ore mined typically contains 0.01 to 0.25% uranium oxides. Extensive measures must be employed to extract the metal from its ore. High-grade ores found in Athabasca Basin deposits in Saskatchewan, Canada can contain up to 23% uranium oxides on average. Uranium ore is crushed and rendered into a fine powder and then leached with either an acid or alkali. The leachate is subjected to one of several sequences of precipitation, solvent extraction, and ion exchange. The resulting mixture, called yellowcake, contains at least 75% uranium oxides U3O8. Yellowcake is then calcined to remove impurities from the milling process before refining and conversion. | In what country are high-grade uranium ores notably found? | In what country are high-grade uranium ores notably found? | [
"In what country are high-grade uranium ores notably found?"
] | {
"text": [
"Canada"
],
"answer_start": [
339
]
} |
gem-squad_v2-train-17279 | 570e43e60dc6ce1900204ef8 | Uranium | Uranium ore is mined in several ways: by open pit, underground, in-situ leaching, and borehole mining (see uranium mining). Low-grade uranium ore mined typically contains 0.01 to 0.25% uranium oxides. Extensive measures must be employed to extract the metal from its ore. High-grade ores found in Athabasca Basin deposits in Saskatchewan, Canada can contain up to 23% uranium oxides on average. Uranium ore is crushed and rendered into a fine powder and then leached with either an acid or alkali. The leachate is subjected to one of several sequences of precipitation, solvent extraction, and ion exchange. The resulting mixture, called yellowcake, contains at least 75% uranium oxides U3O8. Yellowcake is then calcined to remove impurities from the milling process before refining and conversion. | In what province of Canada is the Athabasca Basin? | In what province of Canada is the Athabasca Basin? | [
"In what province of Canada is the Athabasca Basin?"
] | {
"text": [
"Saskatchewan"
],
"answer_start": [
325
]
} |
gem-squad_v2-train-17280 | 570e43e60dc6ce1900204ef9 | Uranium | Uranium ore is mined in several ways: by open pit, underground, in-situ leaching, and borehole mining (see uranium mining). Low-grade uranium ore mined typically contains 0.01 to 0.25% uranium oxides. Extensive measures must be employed to extract the metal from its ore. High-grade ores found in Athabasca Basin deposits in Saskatchewan, Canada can contain up to 23% uranium oxides on average. Uranium ore is crushed and rendered into a fine powder and then leached with either an acid or alkali. The leachate is subjected to one of several sequences of precipitation, solvent extraction, and ion exchange. The resulting mixture, called yellowcake, contains at least 75% uranium oxides U3O8. Yellowcake is then calcined to remove impurities from the milling process before refining and conversion. | What is the average percentage of uranium oxide contained in the ores mined in the Athabasca Basin? | What is the average percentage of uranium oxide contained in the ores mined in the Athabasca Basin? | [
"What is the average percentage of uranium oxide contained in the ores mined in the Athabasca Basin?"
] | {
"text": [
"23%"
],
"answer_start": [
364
]
} |
gem-squad_v2-train-17281 | 5ad11e5a645df0001a2d0e20 | Uranium | Uranium ore is mined in several ways: by open pit, underground, in-situ leaching, and borehole mining (see uranium mining). Low-grade uranium ore mined typically contains 0.01 to 0.25% uranium oxides. Extensive measures must be employed to extract the metal from its ore. High-grade ores found in Athabasca Basin deposits in Saskatchewan, Canada can contain up to 23% uranium oxides on average. Uranium ore is crushed and rendered into a fine powder and then leached with either an acid or alkali. The leachate is subjected to one of several sequences of precipitation, solvent extraction, and ion exchange. The resulting mixture, called yellowcake, contains at least 75% uranium oxides U3O8. Yellowcake is then calcined to remove impurities from the milling process before refining and conversion. | What percentage range of uranium dioxide is usually contained in low-grade uranium ore? | What percentage range of uranium dioxide is usually contained in low-grade uranium ore? | [
"What percentage range of uranium dioxide is usually contained in low-grade uranium ore?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17282 | 5ad11e5a645df0001a2d0e21 | Uranium | Uranium ore is mined in several ways: by open pit, underground, in-situ leaching, and borehole mining (see uranium mining). Low-grade uranium ore mined typically contains 0.01 to 0.25% uranium oxides. Extensive measures must be employed to extract the metal from its ore. High-grade ores found in Athabasca Basin deposits in Saskatchewan, Canada can contain up to 23% uranium oxides on average. Uranium ore is crushed and rendered into a fine powder and then leached with either an acid or alkali. The leachate is subjected to one of several sequences of precipitation, solvent extraction, and ion exchange. The resulting mixture, called yellowcake, contains at least 75% uranium oxides U3O8. Yellowcake is then calcined to remove impurities from the milling process before refining and conversion. | Along with underground, open pit and in-situ leaching, what sort of mining is used to expel uranium? | Along with underground, open pit and in-situ leaching, what sort of mining is used to expel uranium? | [
"Along with underground, open pit and in-situ leaching, what sort of mining is used to expel uranium?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17283 | 5ad11e5a645df0001a2d0e22 | Uranium | Uranium ore is mined in several ways: by open pit, underground, in-situ leaching, and borehole mining (see uranium mining). Low-grade uranium ore mined typically contains 0.01 to 0.25% uranium oxides. Extensive measures must be employed to extract the metal from its ore. High-grade ores found in Athabasca Basin deposits in Saskatchewan, Canada can contain up to 23% uranium oxides on average. Uranium ore is crushed and rendered into a fine powder and then leached with either an acid or alkali. The leachate is subjected to one of several sequences of precipitation, solvent extraction, and ion exchange. The resulting mixture, called yellowcake, contains at least 75% uranium oxides U3O8. Yellowcake is then calcined to remove impurities from the milling process before refining and conversion. | In what country are high-grade uranium ores not found? | In what country are high-grade uranium ores not found? | [
"In what country are high-grade uranium ores not found?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17284 | 5ad11e5a645df0001a2d0e23 | Uranium | Uranium ore is mined in several ways: by open pit, underground, in-situ leaching, and borehole mining (see uranium mining). Low-grade uranium ore mined typically contains 0.01 to 0.25% uranium oxides. Extensive measures must be employed to extract the metal from its ore. High-grade ores found in Athabasca Basin deposits in Saskatchewan, Canada can contain up to 23% uranium oxides on average. Uranium ore is crushed and rendered into a fine powder and then leached with either an acid or alkali. The leachate is subjected to one of several sequences of precipitation, solvent extraction, and ion exchange. The resulting mixture, called yellowcake, contains at least 75% uranium oxides U3O8. Yellowcake is then calcined to remove impurities from the milling process before refining and conversion. | In what state of Canada is the Athabasca Basin? | In what state of Canada is the Athabasca Basin? | [
"In what state of Canada is the Athabasca Basin?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17285 | 5ad11e5a645df0001a2d0e24 | Uranium | Uranium ore is mined in several ways: by open pit, underground, in-situ leaching, and borehole mining (see uranium mining). Low-grade uranium ore mined typically contains 0.01 to 0.25% uranium oxides. Extensive measures must be employed to extract the metal from its ore. High-grade ores found in Athabasca Basin deposits in Saskatchewan, Canada can contain up to 23% uranium oxides on average. Uranium ore is crushed and rendered into a fine powder and then leached with either an acid or alkali. The leachate is subjected to one of several sequences of precipitation, solvent extraction, and ion exchange. The resulting mixture, called yellowcake, contains at least 75% uranium oxides U3O8. Yellowcake is then calcined to remove impurities from the milling process before refining and conversion. | What is the average percentage of uranium dioxide contained in the ores mined in the Athabasca Basin? | What is the average percentage of uranium dioxide contained in the ores mined in the Athabasca Basin? | [
"What is the average percentage of uranium dioxide contained in the ores mined in the Athabasca Basin?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17286 | 570e44ec0b85d914000d7dc7 | Uranium | Two major types of atomic bombs were developed by the United States during World War II: a uranium-based device (codenamed "Little Boy") whose fissile material was highly enriched uranium, and a plutonium-based device (see Trinity test and "Fat Man") whose plutonium was derived from uranium-238. The uranium-based Little Boy device became the first nuclear weapon used in war when it was detonated over the Japanese city of Hiroshima on 6 August 1945. Exploding with a yield equivalent to 12,500 tonnes of TNT, the blast and thermal wave of the bomb destroyed nearly 50,000 buildings and killed approximately 75,000 people (see Atomic bombings of Hiroshima and Nagasaki). Initially it was believed that uranium was relatively rare, and that nuclear proliferation could be avoided by simply buying up all known uranium stocks, but within a decade large deposits of it were discovered in many places around the world. | What was the uranium-based bomb made by the US in World War II called? | What was the uranium-based bomb made by the US in World War II called? | [
"What was the uranium-based bomb made by the US in World War II called?"
] | {
"text": [
"Little Boy"
],
"answer_start": [
124
]
} |
gem-squad_v2-train-17287 | 570e44ec0b85d914000d7dc8 | Uranium | Two major types of atomic bombs were developed by the United States during World War II: a uranium-based device (codenamed "Little Boy") whose fissile material was highly enriched uranium, and a plutonium-based device (see Trinity test and "Fat Man") whose plutonium was derived from uranium-238. The uranium-based Little Boy device became the first nuclear weapon used in war when it was detonated over the Japanese city of Hiroshima on 6 August 1945. Exploding with a yield equivalent to 12,500 tonnes of TNT, the blast and thermal wave of the bomb destroyed nearly 50,000 buildings and killed approximately 75,000 people (see Atomic bombings of Hiroshima and Nagasaki). Initially it was believed that uranium was relatively rare, and that nuclear proliferation could be avoided by simply buying up all known uranium stocks, but within a decade large deposits of it were discovered in many places around the world. | What was the codename of the plutonium-based bomb created in the Second World War? | What was the codename of the plutonium-based bomb created in the Second World War? | [
"What was the codename of the plutonium-based bomb created in the Second World War?"
] | {
"text": [
"Fat Man"
],
"answer_start": [
241
]
} |
gem-squad_v2-train-17288 | 570e44ec0b85d914000d7dc9 | Uranium | Two major types of atomic bombs were developed by the United States during World War II: a uranium-based device (codenamed "Little Boy") whose fissile material was highly enriched uranium, and a plutonium-based device (see Trinity test and "Fat Man") whose plutonium was derived from uranium-238. The uranium-based Little Boy device became the first nuclear weapon used in war when it was detonated over the Japanese city of Hiroshima on 6 August 1945. Exploding with a yield equivalent to 12,500 tonnes of TNT, the blast and thermal wave of the bomb destroyed nearly 50,000 buildings and killed approximately 75,000 people (see Atomic bombings of Hiroshima and Nagasaki). Initially it was believed that uranium was relatively rare, and that nuclear proliferation could be avoided by simply buying up all known uranium stocks, but within a decade large deposits of it were discovered in many places around the world. | On what date was Little Boy detonated? | On what date was Little Boy detonated? | [
"On what date was Little Boy detonated?"
] | {
"text": [
"6 August 1945"
],
"answer_start": [
438
]
} |
gem-squad_v2-train-17289 | 570e44ec0b85d914000d7dca | Uranium | Two major types of atomic bombs were developed by the United States during World War II: a uranium-based device (codenamed "Little Boy") whose fissile material was highly enriched uranium, and a plutonium-based device (see Trinity test and "Fat Man") whose plutonium was derived from uranium-238. The uranium-based Little Boy device became the first nuclear weapon used in war when it was detonated over the Japanese city of Hiroshima on 6 August 1945. Exploding with a yield equivalent to 12,500 tonnes of TNT, the blast and thermal wave of the bomb destroyed nearly 50,000 buildings and killed approximately 75,000 people (see Atomic bombings of Hiroshima and Nagasaki). Initially it was believed that uranium was relatively rare, and that nuclear proliferation could be avoided by simply buying up all known uranium stocks, but within a decade large deposits of it were discovered in many places around the world. | What was the equivalent yield in TNT of the Little Boy bomb, in tonnes? | What was the equivalent yield in TNT of the Little Boy bomb, in tonnes? | [
"What was the equivalent yield in TNT of the Little Boy bomb, in tonnes?"
] | {
"text": [
"12,500"
],
"answer_start": [
490
]
} |
gem-squad_v2-train-17290 | 570e44ec0b85d914000d7dcb | Uranium | Two major types of atomic bombs were developed by the United States during World War II: a uranium-based device (codenamed "Little Boy") whose fissile material was highly enriched uranium, and a plutonium-based device (see Trinity test and "Fat Man") whose plutonium was derived from uranium-238. The uranium-based Little Boy device became the first nuclear weapon used in war when it was detonated over the Japanese city of Hiroshima on 6 August 1945. Exploding with a yield equivalent to 12,500 tonnes of TNT, the blast and thermal wave of the bomb destroyed nearly 50,000 buildings and killed approximately 75,000 people (see Atomic bombings of Hiroshima and Nagasaki). Initially it was believed that uranium was relatively rare, and that nuclear proliferation could be avoided by simply buying up all known uranium stocks, but within a decade large deposits of it were discovered in many places around the world. | Over what city was Little Boy detonated? | Over what city was Little Boy detonated? | [
"Over what city was Little Boy detonated?"
] | {
"text": [
"Hiroshima"
],
"answer_start": [
425
]
} |
gem-squad_v2-train-17291 | 5ad11963645df0001a2d0d62 | Uranium | Two major types of atomic bombs were developed by the United States during World War II: a uranium-based device (codenamed "Little Boy") whose fissile material was highly enriched uranium, and a plutonium-based device (see Trinity test and "Fat Man") whose plutonium was derived from uranium-238. The uranium-based Little Boy device became the first nuclear weapon used in war when it was detonated over the Japanese city of Hiroshima on 6 August 1945. Exploding with a yield equivalent to 12,500 tonnes of TNT, the blast and thermal wave of the bomb destroyed nearly 50,000 buildings and killed approximately 75,000 people (see Atomic bombings of Hiroshima and Nagasaki). Initially it was believed that uranium was relatively rare, and that nuclear proliferation could be avoided by simply buying up all known uranium stocks, but within a decade large deposits of it were discovered in many places around the world. | What was the uranium-based bomb made by the US in World War I called? | What was the uranium-based bomb made by the US in World War I called? | [
"What was the uranium-based bomb made by the US in World War I called?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17292 | 5ad11963645df0001a2d0d63 | Uranium | Two major types of atomic bombs were developed by the United States during World War II: a uranium-based device (codenamed "Little Boy") whose fissile material was highly enriched uranium, and a plutonium-based device (see Trinity test and "Fat Man") whose plutonium was derived from uranium-238. The uranium-based Little Boy device became the first nuclear weapon used in war when it was detonated over the Japanese city of Hiroshima on 6 August 1945. Exploding with a yield equivalent to 12,500 tonnes of TNT, the blast and thermal wave of the bomb destroyed nearly 50,000 buildings and killed approximately 75,000 people (see Atomic bombings of Hiroshima and Nagasaki). Initially it was believed that uranium was relatively rare, and that nuclear proliferation could be avoided by simply buying up all known uranium stocks, but within a decade large deposits of it were discovered in many places around the world. | What was the codename of the plutonium-based bomb destroyed in the Second World War? | What was the codename of the plutonium-based bomb destroyed in the Second World War? | [
"What was the codename of the plutonium-based bomb destroyed in the Second World War?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17293 | 5ad11963645df0001a2d0d64 | Uranium | Two major types of atomic bombs were developed by the United States during World War II: a uranium-based device (codenamed "Little Boy") whose fissile material was highly enriched uranium, and a plutonium-based device (see Trinity test and "Fat Man") whose plutonium was derived from uranium-238. The uranium-based Little Boy device became the first nuclear weapon used in war when it was detonated over the Japanese city of Hiroshima on 6 August 1945. Exploding with a yield equivalent to 12,500 tonnes of TNT, the blast and thermal wave of the bomb destroyed nearly 50,000 buildings and killed approximately 75,000 people (see Atomic bombings of Hiroshima and Nagasaki). Initially it was believed that uranium was relatively rare, and that nuclear proliferation could be avoided by simply buying up all known uranium stocks, but within a decade large deposits of it were discovered in many places around the world. | On what date wasn't Little Boy detonated? | On what date wasn't Little Boy detonated? | [
"On what date wasn't Little Boy detonated?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17294 | 5ad11963645df0001a2d0d65 | Uranium | Two major types of atomic bombs were developed by the United States during World War II: a uranium-based device (codenamed "Little Boy") whose fissile material was highly enriched uranium, and a plutonium-based device (see Trinity test and "Fat Man") whose plutonium was derived from uranium-238. The uranium-based Little Boy device became the first nuclear weapon used in war when it was detonated over the Japanese city of Hiroshima on 6 August 1945. Exploding with a yield equivalent to 12,500 tonnes of TNT, the blast and thermal wave of the bomb destroyed nearly 50,000 buildings and killed approximately 75,000 people (see Atomic bombings of Hiroshima and Nagasaki). Initially it was believed that uranium was relatively rare, and that nuclear proliferation could be avoided by simply buying up all known uranium stocks, but within a decade large deposits of it were discovered in many places around the world. | What was the equivalent yield in TNT of the Little Boy bomb, in pounds? | What was the equivalent yield in TNT of the Little Boy bomb, in pounds? | [
"What was the equivalent yield in TNT of the Little Boy bomb, in pounds?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17295 | 5ad11963645df0001a2d0d66 | Uranium | Two major types of atomic bombs were developed by the United States during World War II: a uranium-based device (codenamed "Little Boy") whose fissile material was highly enriched uranium, and a plutonium-based device (see Trinity test and "Fat Man") whose plutonium was derived from uranium-238. The uranium-based Little Boy device became the first nuclear weapon used in war when it was detonated over the Japanese city of Hiroshima on 6 August 1945. Exploding with a yield equivalent to 12,500 tonnes of TNT, the blast and thermal wave of the bomb destroyed nearly 50,000 buildings and killed approximately 75,000 people (see Atomic bombings of Hiroshima and Nagasaki). Initially it was believed that uranium was relatively rare, and that nuclear proliferation could be avoided by simply buying up all known uranium stocks, but within a decade large deposits of it were discovered in many places around the world. | Over what city wasn't Little Boy detonated? | Over what city wasn't Little Boy detonated? | [
"Over what city wasn't Little Boy detonated?"
] | {
"text": [],
"answer_start": []
} |
gem-squad_v2-train-17296 | 570e45630b85d914000d7dd1 | Uranium | In 2005, seventeen countries produced concentrated uranium oxides, with Canada (27.9% of world production) and Australia (22.8%) being the largest producers and Kazakhstan (10.5%), Russia (8.0%), Namibia (7.5%), Niger (7.4%), Uzbekistan (5.5%), the United States (2.5%), Argentina (2.1%), Ukraine (1.9%) and China (1.7%) also producing significant amounts. Kazakhstan continues to increase production and may have become the world's largest producer of uranium by 2009 with an expected production of 12,826 tonnes, compared to Canada with 11,100 t and Australia with 9,430 t. In the late 1960s, UN geologists also discovered major uranium deposits and other rare mineral reserves in Somalia. The find was the largest of its kind, with industry experts estimating the deposits at over 25% of the world's then known uranium reserves of 800,000 tons. | As of 2005, what country was the largest producer of uranium oxides? | As of 2005, what country was the largest producer of uranium oxides? | [
"As of 2005, what country was the largest producer of uranium oxides?"
] | {
"text": [
"Canada"
],
"answer_start": [
72
]
} |
gem-squad_v2-train-17297 | 570e45630b85d914000d7dd2 | Uranium | In 2005, seventeen countries produced concentrated uranium oxides, with Canada (27.9% of world production) and Australia (22.8%) being the largest producers and Kazakhstan (10.5%), Russia (8.0%), Namibia (7.5%), Niger (7.4%), Uzbekistan (5.5%), the United States (2.5%), Argentina (2.1%), Ukraine (1.9%) and China (1.7%) also producing significant amounts. Kazakhstan continues to increase production and may have become the world's largest producer of uranium by 2009 with an expected production of 12,826 tonnes, compared to Canada with 11,100 t and Australia with 9,430 t. In the late 1960s, UN geologists also discovered major uranium deposits and other rare mineral reserves in Somalia. The find was the largest of its kind, with industry experts estimating the deposits at over 25% of the world's then known uranium reserves of 800,000 tons. | What percentage of world uranium oxide production is produced by Argentina? | What percentage of world uranium oxide production is produced by Argentina? | [
"What percentage of world uranium oxide production is produced by Argentina?"
] | {
"text": [
"2.1%"
],
"answer_start": [
282
]
} |
gem-squad_v2-train-17298 | 570e45630b85d914000d7dd3 | Uranium | In 2005, seventeen countries produced concentrated uranium oxides, with Canada (27.9% of world production) and Australia (22.8%) being the largest producers and Kazakhstan (10.5%), Russia (8.0%), Namibia (7.5%), Niger (7.4%), Uzbekistan (5.5%), the United States (2.5%), Argentina (2.1%), Ukraine (1.9%) and China (1.7%) also producing significant amounts. Kazakhstan continues to increase production and may have become the world's largest producer of uranium by 2009 with an expected production of 12,826 tonnes, compared to Canada with 11,100 t and Australia with 9,430 t. In the late 1960s, UN geologists also discovered major uranium deposits and other rare mineral reserves in Somalia. The find was the largest of its kind, with industry experts estimating the deposits at over 25% of the world's then known uranium reserves of 800,000 tons. | What country produced 5.5% of the world's concentrated uranium oxide in 2005? | What country produced 5.5% of the world's concentrated uranium oxide in 2005? | [
"What country produced 5.5% of the world's concentrated uranium oxide in 2005?"
] | {
"text": [
"Uzbekistan"
],
"answer_start": [
226
]
} |
gem-squad_v2-train-17299 | 570e45630b85d914000d7dd4 | Uranium | In 2005, seventeen countries produced concentrated uranium oxides, with Canada (27.9% of world production) and Australia (22.8%) being the largest producers and Kazakhstan (10.5%), Russia (8.0%), Namibia (7.5%), Niger (7.4%), Uzbekistan (5.5%), the United States (2.5%), Argentina (2.1%), Ukraine (1.9%) and China (1.7%) also producing significant amounts. Kazakhstan continues to increase production and may have become the world's largest producer of uranium by 2009 with an expected production of 12,826 tonnes, compared to Canada with 11,100 t and Australia with 9,430 t. In the late 1960s, UN geologists also discovered major uranium deposits and other rare mineral reserves in Somalia. The find was the largest of its kind, with industry experts estimating the deposits at over 25% of the world's then known uranium reserves of 800,000 tons. | How many tonnes of uranium was Australia expected to produce in 2009? | How many tonnes of uranium was Australia expected to produce in 2009? | [
"How many tonnes of uranium was Australia expected to produce in 2009?"
] | {
"text": [
"9,430"
],
"answer_start": [
567
]
} |
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