id stringlengths 24 24 | title stringclasses 442
values | context stringlengths 151 3.71k | question stringlengths 12 270 | answers dict |
|---|---|---|---|---|
572ec835c246551400ce4663 | Geography_of_the_United_States | The Intermontane Plateaus come to an end at the Cascade Range and the Sierra Nevada. The Cascades consist of largely intermittent, volcanic mountains, many rising prominently from the surrounding landscape. The Sierra Nevada, further south, is a high, rugged, and dense mountain range. It contains the highest point in t... | What is the largest point in the Sierra Nevadas? | {
"answer_start": [
345
],
"text": [
"Mount Whitney"
]
} |
572ec835c246551400ce4664 | Geography_of_the_United_States | The Intermontane Plateaus come to an end at the Cascade Range and the Sierra Nevada. The Cascades consist of largely intermittent, volcanic mountains, many rising prominently from the surrounding landscape. The Sierra Nevada, further south, is a high, rugged, and dense mountain range. It contains the highest point in t... | How tall is Mount Whitney? | {
"answer_start": [
360
],
"text": [
"14,505 ft"
]
} |
572ec95603f9891900756a1b | Geography_of_the_United_States | These areas contain some spectacular scenery as well, as evidenced by such national parks as Yosemite and Mount Rainier. West of the Cascades and Sierra Nevada is a series of valleys, such as the Central Valley in California and the Willamette Valley in Oregon. Along the coast is a series of low mountain ranges known a... | What are two national parks located in the mountainous regions? | {
"answer_start": [
93
],
"text": [
"Yosemite and Mount Rainier"
]
} |
572ec95603f9891900756a1c | Geography_of_the_United_States | These areas contain some spectacular scenery as well, as evidenced by such national parks as Yosemite and Mount Rainier. West of the Cascades and Sierra Nevada is a series of valleys, such as the Central Valley in California and the Willamette Valley in Oregon. Along the coast is a series of low mountain ranges known a... | What is the name of the famous valley located in California? | {
"answer_start": [
196
],
"text": [
"Central Valley"
]
} |
572ec95603f9891900756a1d | Geography_of_the_United_States | These areas contain some spectacular scenery as well, as evidenced by such national parks as Yosemite and Mount Rainier. West of the Cascades and Sierra Nevada is a series of valleys, such as the Central Valley in California and the Willamette Valley in Oregon. Along the coast is a series of low mountain ranges known a... | What is the name of the famous valley located in Oregon? | {
"answer_start": [
233
],
"text": [
"Willamette Valley"
]
} |
572ec95603f9891900756a1e | Geography_of_the_United_States | These areas contain some spectacular scenery as well, as evidenced by such national parks as Yosemite and Mount Rainier. West of the Cascades and Sierra Nevada is a series of valleys, such as the Central Valley in California and the Willamette Valley in Oregon. Along the coast is a series of low mountain ranges known a... | What are the low mountain ranges that are located along the pacific coast called? | {
"answer_start": [
326
],
"text": [
"Pacific Coast Ranges"
]
} |
572ec95603f9891900756a1f | Geography_of_the_United_States | These areas contain some spectacular scenery as well, as evidenced by such national parks as Yosemite and Mount Rainier. West of the Cascades and Sierra Nevada is a series of valleys, such as the Central Valley in California and the Willamette Valley in Oregon. Along the coast is a series of low mountain ranges known a... | What are the tallest trees in the world? | {
"answer_start": [
500
],
"text": [
"Redwoods"
]
} |
572ecac2dfa6aa1500f8d3c5 | Geography_of_the_United_States | The Atlantic coast of the United States is low, with minor exceptions. The Appalachian Highland owes its oblique northeast-southwest trend to crustal deformations which in very early geological time gave a beginning to what later came to be the Appalachian mountain system. This system had its climax of deformation so l... | Why does the Appalachian Highland have the terrain it does? | {
"answer_start": [
142
],
"text": [
"crustal deformations"
]
} |
572ecac2dfa6aa1500f8d3c6 | Geography_of_the_United_States | The Atlantic coast of the United States is low, with minor exceptions. The Appalachian Highland owes its oblique northeast-southwest trend to crustal deformations which in very early geological time gave a beginning to what later came to be the Appalachian mountain system. This system had its climax of deformation so l... | During what geological period did the Appalachian mountains reach their highest formation point? | {
"answer_start": [
341
],
"text": [
"Permian time"
]
} |
572ecac2dfa6aa1500f8d3c7 | Geography_of_the_United_States | The Atlantic coast of the United States is low, with minor exceptions. The Appalachian Highland owes its oblique northeast-southwest trend to crustal deformations which in very early geological time gave a beginning to what later came to be the Appalachian mountain system. This system had its climax of deformation so l... | What is the name of the mountaneous region along the Atlantic cost. | {
"answer_start": [
71
],
"text": [
"The Appalachian Highland"
]
} |
572ecb56c246551400ce469c | Geography_of_the_United_States | The east coast Appalachian system, originally forest covered, is relatively low and narrow and is bordered on the southeast and south by an important coastal plain. The Cordilleran system on the western side of the continent is lofty, broad and complicated having two branches, the Rocky Mountain System and the Pacific ... | What originally covered the east coast of the Appalachians? | {
"answer_start": [
46
],
"text": [
"forest"
]
} |
572ecb56c246551400ce469d | Geography_of_the_United_States | The east coast Appalachian system, originally forest covered, is relatively low and narrow and is bordered on the southeast and south by an important coastal plain. The Cordilleran system on the western side of the continent is lofty, broad and complicated having two branches, the Rocky Mountain System and the Pacific ... | What are the two branches of the Cordilleran system? | {
"answer_start": [
282
],
"text": [
"Rocky Mountain System and the Pacific Mountain System"
]
} |
572ecb56c246551400ce469e | Geography_of_the_United_States | The east coast Appalachian system, originally forest covered, is relatively low and narrow and is bordered on the southeast and south by an important coastal plain. The Cordilleran system on the western side of the continent is lofty, broad and complicated having two branches, the Rocky Mountain System and the Pacific ... | Which two major rivers are located in the Cordilleran system? | {
"answer_start": [
412
],
"text": [
"Columbia River and Colorado River"
]
} |
572ecb56c246551400ce469f | Geography_of_the_United_States | The east coast Appalachian system, originally forest covered, is relatively low and narrow and is bordered on the southeast and south by an important coastal plain. The Cordilleran system on the western side of the continent is lofty, broad and complicated having two branches, the Rocky Mountain System and the Pacific ... | Which region of the Appalachians is the most arid? | {
"answer_start": [
820
],
"text": [
"southwest"
]
} |
572ecc0fcb0c0d14000f157e | Geography_of_the_United_States | The Laurentian Highlands, the Interior Plains and the Interior Highlands lie between the two coasts, stretching from the Gulf of Mexico northward, far beyond the national boundary, to the Arctic Ocean. The central plains are divided by a hardly perceptible height of land into a Canadian and a United States portion. It ... | What is one of the two major highlands that stretch from the gulf of mexico to the Arctic ocean? | {
"answer_start": [
4
],
"text": [
"Laurentian Highlands"
]
} |
572ecc0fcb0c0d14000f157f | Geography_of_the_United_States | The Laurentian Highlands, the Interior Plains and the Interior Highlands lie between the two coasts, stretching from the Gulf of Mexico northward, far beyond the national boundary, to the Arctic Ocean. The central plains are divided by a hardly perceptible height of land into a Canadian and a United States portion. It ... | How far north do the Interior Highlands reach? | {
"answer_start": [
188
],
"text": [
"Arctic Ocean"
]
} |
572ecc0fcb0c0d14000f1580 | Geography_of_the_United_States | The Laurentian Highlands, the Interior Plains and the Interior Highlands lie between the two coasts, stretching from the Gulf of Mexico northward, far beyond the national boundary, to the Arctic Ocean. The central plains are divided by a hardly perceptible height of land into a Canadian and a United States portion. It ... | Which two nations are the central plains divided in? | {
"answer_start": [
279
],
"text": [
"Canadian and a United States"
]
} |
572ecc0fcb0c0d14000f1581 | Geography_of_the_United_States | The Laurentian Highlands, the Interior Plains and the Interior Highlands lie between the two coasts, stretching from the Gulf of Mexico northward, far beyond the national boundary, to the Arctic Ocean. The central plains are divided by a hardly perceptible height of land into a Canadian and a United States portion. It ... | Where does the Mississippi discharge? | {
"answer_start": [
414
],
"text": [
"Gulf of Mexico"
]
} |
572ecc85cb0c0d14000f1586 | Geography_of_the_United_States | Due to its large size and wide range of geographic features, the United States contains examples of nearly every global climate. The climate is temperate in most areas, subtropical in the Southern United States, tropical in Hawaii and southern Florida, polar in Alaska, semiarid in the Great Plains west of the 100th mer... | What is the climate like in the Southern United States? | {
"answer_start": [
169
],
"text": [
"subtropical"
]
} |
572ecc85cb0c0d14000f1587 | Geography_of_the_United_States | Due to its large size and wide range of geographic features, the United States contains examples of nearly every global climate. The climate is temperate in most areas, subtropical in the Southern United States, tropical in Hawaii and southern Florida, polar in Alaska, semiarid in the Great Plains west of the 100th mer... | Hawaii has what type of climate? | {
"answer_start": [
212
],
"text": [
"tropical"
]
} |
572ecc85cb0c0d14000f1588 | Geography_of_the_United_States | Due to its large size and wide range of geographic features, the United States contains examples of nearly every global climate. The climate is temperate in most areas, subtropical in the Southern United States, tropical in Hawaii and southern Florida, polar in Alaska, semiarid in the Great Plains west of the 100th mer... | Which state is known for its Mediterranean climate? | {
"answer_start": [
352
],
"text": [
"California"
]
} |
572ecc85cb0c0d14000f1589 | Geography_of_the_United_States | Due to its large size and wide range of geographic features, the United States contains examples of nearly every global climate. The climate is temperate in most areas, subtropical in the Southern United States, tropical in Hawaii and southern Florida, polar in Alaska, semiarid in the Great Plains west of the 100th mer... | What contributed to the rise of the US as a world power? | {
"answer_start": [
420
],
"text": [
"agricultural climate"
]
} |
572ecc85cb0c0d14000f158a | Geography_of_the_United_States | Due to its large size and wide range of geographic features, the United States contains examples of nearly every global climate. The climate is temperate in most areas, subtropical in the Southern United States, tropical in Hawaii and southern Florida, polar in Alaska, semiarid in the Great Plains west of the 100th mer... | What is the climate like in most areas of the US? | {
"answer_start": [
144
],
"text": [
"temperate"
]
} |
572ecd39dfa6aa1500f8d3db | Geography_of_the_United_States | The Great Basin and Columbia Plateau (the Intermontane Plateaus) are arid or semiarid regions that lie in the rain shadow of the Cascades and Sierra Nevada. Precipitation averages less than 15 inches (38 cm). The Southwest is a hot desert, with temperatures exceeding 100 °F (37.8 °C) for several weeks at a time in summ... | Which areas have arid regions? | {
"answer_start": [
0
],
"text": [
"The Great Basin and Columbia Plateau"
]
} |
572ecd39dfa6aa1500f8d3dc | Geography_of_the_United_States | The Great Basin and Columbia Plateau (the Intermontane Plateaus) are arid or semiarid regions that lie in the rain shadow of the Cascades and Sierra Nevada. Precipitation averages less than 15 inches (38 cm). The Southwest is a hot desert, with temperatures exceeding 100 °F (37.8 °C) for several weeks at a time in summ... | What is the precipitation average in the Intermontane plateaus? | {
"answer_start": [
190
],
"text": [
"15 inches"
]
} |
572ecd39dfa6aa1500f8d3dd | Geography_of_the_United_States | The Great Basin and Columbia Plateau (the Intermontane Plateaus) are arid or semiarid regions that lie in the rain shadow of the Cascades and Sierra Nevada. Precipitation averages less than 15 inches (38 cm). The Southwest is a hot desert, with temperatures exceeding 100 °F (37.8 °C) for several weeks at a time in summ... | In the southwest, how high do temperatures get? | {
"answer_start": [
268
],
"text": [
"100 °F (37.8 °C)"
]
} |
572ecd39dfa6aa1500f8d3de | Geography_of_the_United_States | The Great Basin and Columbia Plateau (the Intermontane Plateaus) are arid or semiarid regions that lie in the rain shadow of the Cascades and Sierra Nevada. Precipitation averages less than 15 inches (38 cm). The Southwest is a hot desert, with temperatures exceeding 100 °F (37.8 °C) for several weeks at a time in summ... | During which months are portions of the US affected by the monsoon from the Gulf of California? | {
"answer_start": [
424
],
"text": [
"July to September"
]
} |
572ecd39dfa6aa1500f8d3df | Geography_of_the_United_States | The Great Basin and Columbia Plateau (the Intermontane Plateaus) are arid or semiarid regions that lie in the rain shadow of the Cascades and Sierra Nevada. Precipitation averages less than 15 inches (38 cm). The Southwest is a hot desert, with temperatures exceeding 100 °F (37.8 °C) for several weeks at a time in summ... | What type of weather do monsoons bring? | {
"answer_start": [
476
],
"text": [
"severe thunderstorms"
]
} |
572ecda5cb0c0d14000f1598 | Geography_of_the_United_States | Much of California consists of a Mediterranean climate, with sometimes excessive rainfall from October–April and nearly no rain the rest of the year. In the Pacific Northwest rain falls year-round, but is much heavier during winter and spring. The mountains of the west receive abundant precipitation and very heavy snow... | What is the most prevalent type of climate nCalifornia? | {
"answer_start": [
33
],
"text": [
"Mediterranean"
]
} |
572ecda5cb0c0d14000f1599 | Geography_of_the_United_States | Much of California consists of a Mediterranean climate, with sometimes excessive rainfall from October–April and nearly no rain the rest of the year. In the Pacific Northwest rain falls year-round, but is much heavier during winter and spring. The mountains of the west receive abundant precipitation and very heavy snow... | During what time of the year does California receive the most rainfall? | {
"answer_start": [
95
],
"text": [
"October–April"
]
} |
572ecda5cb0c0d14000f159a | Geography_of_the_United_States | Much of California consists of a Mediterranean climate, with sometimes excessive rainfall from October–April and nearly no rain the rest of the year. In the Pacific Northwest rain falls year-round, but is much heavier during winter and spring. The mountains of the west receive abundant precipitation and very heavy snow... | Which region of the US experiences rain year round? | {
"answer_start": [
157
],
"text": [
"Pacific Northwest"
]
} |
572ecda5cb0c0d14000f159b | Geography_of_the_United_States | Much of California consists of a Mediterranean climate, with sometimes excessive rainfall from October–April and nearly no rain the rest of the year. In the Pacific Northwest rain falls year-round, but is much heavier during winter and spring. The mountains of the west receive abundant precipitation and very heavy snow... | Which region in the US is also one of the most snowiest places in the world? | {
"answer_start": [
326
],
"text": [
"The Cascades"
]
} |
572ecda5cb0c0d14000f159c | Geography_of_the_United_States | Much of California consists of a Mediterranean climate, with sometimes excessive rainfall from October–April and nearly no rain the rest of the year. In the Pacific Northwest rain falls year-round, but is much heavier during winter and spring. The mountains of the west receive abundant precipitation and very heavy snow... | How many inches of snow do regions of the Cascades receive? | {
"answer_start": [
416
],
"text": [
"600 inches"
]
} |
572ece1adfa6aa1500f8d3ef | Geography_of_the_United_States | On average, the mountains of the western states receive the highest levels of snowfall on Earth. The greatest annual snowfall level is at Mount Rainier in Washington, at 692 inches (1,758 cm); the record there was 1,122 inches (2,850 cm) in the winter of 1971–72. This record was broken by the Mt. Baker Ski Area in nort... | Which mountainous region receives the highest snowfall on Earth? | {
"answer_start": [
16
],
"text": [
"mountains of the western states"
]
} |
572ece1adfa6aa1500f8d3f0 | Geography_of_the_United_States | On average, the mountains of the western states receive the highest levels of snowfall on Earth. The greatest annual snowfall level is at Mount Rainier in Washington, at 692 inches (1,758 cm); the record there was 1,122 inches (2,850 cm) in the winter of 1971–72. This record was broken by the Mt. Baker Ski Area in nort... | Which mountain in Washington receives the most amount of snowfall? | {
"answer_start": [
138
],
"text": [
"Mount Rainier"
]
} |
572ece1adfa6aa1500f8d3f1 | Geography_of_the_United_States | On average, the mountains of the western states receive the highest levels of snowfall on Earth. The greatest annual snowfall level is at Mount Rainier in Washington, at 692 inches (1,758 cm); the record there was 1,122 inches (2,850 cm) in the winter of 1971–72. This record was broken by the Mt. Baker Ski Area in nort... | What is the record amount of snowfall at Mount Rainer? | {
"answer_start": [
214
],
"text": [
"1,122 inches"
]
} |
572ece1adfa6aa1500f8d3f2 | Geography_of_the_United_States | On average, the mountains of the western states receive the highest levels of snowfall on Earth. The greatest annual snowfall level is at Mount Rainier in Washington, at 692 inches (1,758 cm); the record there was 1,122 inches (2,850 cm) in the winter of 1971–72. This record was broken by the Mt. Baker Ski Area in nort... | In what year did Mount Rainer receive a record amount of snowfall? | {
"answer_start": [
399
],
"text": [
"1998-99"
]
} |
572ece1adfa6aa1500f8d3f3 | Geography_of_the_United_States | On average, the mountains of the western states receive the highest levels of snowfall on Earth. The greatest annual snowfall level is at Mount Rainier in Washington, at 692 inches (1,758 cm); the record there was 1,122 inches (2,850 cm) in the winter of 1971–72. This record was broken by the Mt. Baker Ski Area in nort... | The Sierra Nevadas are located near which lake? | {
"answer_start": [
606
],
"text": [
"Lake Tahoe"
]
} |
572ecf3bcb0c0d14000f15bf | Geography_of_the_United_States | In the east, while snowfall does not approach western levels, the region near the Great Lakes and the mountains of the Northeast receive the most. Along the northwestern Pacific coast, rainfall is greater than anywhere else in the continental U.S., with Quinault Rainforest in Washington having an average of 137 inches ... | Which region of the US receives the most amount of rainfall? | {
"answer_start": [
157
],
"text": [
"northwestern Pacific coast"
]
} |
572ecf3bcb0c0d14000f15c0 | Geography_of_the_United_States | In the east, while snowfall does not approach western levels, the region near the Great Lakes and the mountains of the Northeast receive the most. Along the northwestern Pacific coast, rainfall is greater than anywhere else in the continental U.S., with Quinault Rainforest in Washington having an average of 137 inches ... | What is the average amount of rainfall that the Quinault rainforest in Washington receives? | {
"answer_start": [
309
],
"text": [
"137 inches"
]
} |
572ecf3bcb0c0d14000f15be | Geography_of_the_United_States | In the east, while snowfall does not approach western levels, the region near the Great Lakes and the mountains of the Northeast receive the most. Along the northwestern Pacific coast, rainfall is greater than anywhere else in the continental U.S., with Quinault Rainforest in Washington having an average of 137 inches ... | Which regions in the East receives the most amount of snowfall? | {
"answer_start": [
82
],
"text": [
"Great Lakes and the mountains of the Northeast"
]
} |
572ecf3bcb0c0d14000f15c1 | Geography_of_the_United_States | In the east, while snowfall does not approach western levels, the region near the Great Lakes and the mountains of the Northeast receive the most. Along the northwestern Pacific coast, rainfall is greater than anywhere else in the continental U.S., with Quinault Rainforest in Washington having an average of 137 inches ... | Which state receives an average of 460 inches of rainfall per year? | {
"answer_start": [
330
],
"text": [
"Hawaii"
]
} |
572ecf3bcb0c0d14000f15c2 | Geography_of_the_United_States | In the east, while snowfall does not approach western levels, the region near the Great Lakes and the mountains of the Northeast receive the most. Along the northwestern Pacific coast, rainfall is greater than anywhere else in the continental U.S., with Quinault Rainforest in Washington having an average of 137 inches ... | What is the name of the desert that is located in the driest region in the US? | {
"answer_start": [
436
],
"text": [
"Mojave Desert"
]
} |
572ed039c246551400ce46d6 | Geography_of_the_United_States | In central portions of the U.S., tornadoes are more common than anywhere else on Earth and touch down most commonly in the spring and summer. Deadly and destructive hurricanes occur almost every year along the Atlantic seaboard and the Gulf of Mexico. The Appalachian region and the Midwest experience the worst floods, ... | Where are tornadoes most common on Earth? | {
"answer_start": [
3
],
"text": [
"central portions of the U.S."
]
} |
572ed039c246551400ce46d7 | Geography_of_the_United_States | In central portions of the U.S., tornadoes are more common than anywhere else on Earth and touch down most commonly in the spring and summer. Deadly and destructive hurricanes occur almost every year along the Atlantic seaboard and the Gulf of Mexico. The Appalachian region and the Midwest experience the worst floods, ... | During which seasons are tornados most common? | {
"answer_start": [
123
],
"text": [
"spring and summer"
]
} |
572ed039c246551400ce46d8 | Geography_of_the_United_States | In central portions of the U.S., tornadoes are more common than anywhere else on Earth and touch down most commonly in the spring and summer. Deadly and destructive hurricanes occur almost every year along the Atlantic seaboard and the Gulf of Mexico. The Appalachian region and the Midwest experience the worst floods, ... | Which regions experience the worst flooding in the US? | {
"answer_start": [
256
],
"text": [
"Appalachian region and the Midwest"
]
} |
572ed039c246551400ce46d9 | Geography_of_the_United_States | In central portions of the U.S., tornadoes are more common than anywhere else on Earth and touch down most commonly in the spring and summer. Deadly and destructive hurricanes occur almost every year along the Atlantic seaboard and the Gulf of Mexico. The Appalachian region and the Midwest experience the worst floods, ... | Which region experiences the worst droughts in the US? | {
"answer_start": [
384
],
"text": [
"Southwest"
]
} |
572ed039c246551400ce46da | Geography_of_the_United_States | In central portions of the U.S., tornadoes are more common than anywhere else on Earth and touch down most commonly in the spring and summer. Deadly and destructive hurricanes occur almost every year along the Atlantic seaboard and the Gulf of Mexico. The Appalachian region and the Midwest experience the worst floods, ... | What type of disasters affects the western US every year? | {
"answer_start": [
536
],
"text": [
"wildfires"
]
} |
572ed0fadfa6aa1500f8d3f9 | Geography_of_the_United_States | Occasional severe flooding is experienced. There was the Great Mississippi Flood of 1927, the Great Flood of 1993, and widespread flooding and mudslides caused by the 1982-1983 El Niño event in the western United States. Localized flooding can, however, occur anywhere, and mudslides from heavy rain can cause problems i... | The Great Mississippi occurred during what year? | {
"answer_start": [
84
],
"text": [
"1927"
]
} |
572ed0fadfa6aa1500f8d3fa | Geography_of_the_United_States | Occasional severe flooding is experienced. There was the Great Mississippi Flood of 1927, the Great Flood of 1993, and widespread flooding and mudslides caused by the 1982-1983 El Niño event in the western United States. Localized flooding can, however, occur anywhere, and mudslides from heavy rain can cause problems i... | What fuels wildfires and causes them to spread in the west? | {
"answer_start": [
391
],
"text": [
"desert shrub"
]
} |
572ed0fadfa6aa1500f8d3fb | Geography_of_the_United_States | Occasional severe flooding is experienced. There was the Great Mississippi Flood of 1927, the Great Flood of 1993, and widespread flooding and mudslides caused by the 1982-1983 El Niño event in the western United States. Localized flooding can, however, occur anywhere, and mudslides from heavy rain can cause problems i... | What type of storms can cause most activity to stop? | {
"answer_start": [
613
],
"text": [
"Nor'Easter snowstorms"
]
} |
572ed0fadfa6aa1500f8d3fc | Geography_of_the_United_States | Occasional severe flooding is experienced. There was the Great Mississippi Flood of 1927, the Great Flood of 1993, and widespread flooding and mudslides caused by the 1982-1983 El Niño event in the western United States. Localized flooding can, however, occur anywhere, and mudslides from heavy rain can cause problems i... | What is the name of the event that caused major flooding in the western US? | {
"answer_start": [
177
],
"text": [
"El Niño"
]
} |
572ed29703f9891900756a53 | Geography_of_the_United_States | The West Coast of the continental United States and areas of Alaska (including the Aleutian Islands, the Alaskan Peninsula and southern Alaskan coast) make up part of the Pacific Ring of Fire, an area of heavy tectonic and volcanic activity that is the source of 90% of the world's earthquakes.[citation needed] The Amer... | What is the area in the pacific known for heavy volcanic activity? | {
"answer_start": [
171
],
"text": [
"Pacific Ring of Fire"
]
} |
572ed29703f9891900756a55 | Geography_of_the_United_States | The West Coast of the continental United States and areas of Alaska (including the Aleutian Islands, the Alaskan Peninsula and southern Alaskan coast) make up part of the Pacific Ring of Fire, an area of heavy tectonic and volcanic activity that is the source of 90% of the world's earthquakes.[citation needed] The Amer... | Which Hawaiin volcano has been erupting since 1983? | {
"answer_start": [
562
],
"text": [
"Kilauea"
]
} |
572ed29703f9891900756a54 | Geography_of_the_United_States | The West Coast of the continental United States and areas of Alaska (including the Aleutian Islands, the Alaskan Peninsula and southern Alaskan coast) make up part of the Pacific Ring of Fire, an area of heavy tectonic and volcanic activity that is the source of 90% of the world's earthquakes.[citation needed] The Amer... | The Pacific Ring of Fire contains what percentage of the earthquakes on Earth? | {
"answer_start": [
263
],
"text": [
"90%"
]
} |
572ed29703f9891900756a56 | Geography_of_the_United_States | The West Coast of the continental United States and areas of Alaska (including the Aleutian Islands, the Alaskan Peninsula and southern Alaskan coast) make up part of the Pacific Ring of Fire, an area of heavy tectonic and volcanic activity that is the source of 90% of the world's earthquakes.[citation needed] The Amer... | When was the last time that the Hawaiin islands experienced a life threatening volcanic eruption? | {
"answer_start": [
764
],
"text": [
"17th century"
]
} |
572ed29703f9891900756a57 | Geography_of_the_United_States | The West Coast of the continental United States and areas of Alaska (including the Aleutian Islands, the Alaskan Peninsula and southern Alaskan coast) make up part of the Pacific Ring of Fire, an area of heavy tectonic and volcanic activity that is the source of 90% of the world's earthquakes.[citation needed] The Amer... | What year did Mt St. Helens erupt causing devastating damage? | {
"answer_start": [
845
],
"text": [
"1980"
]
} |
572ec5f7cb0c0d14000f1536 | Compact_disc | Compact Disc (CD) is a digital optical disc data storage format. The format was originally developed to store and play only sound recordings but was later adapted for storage of data (CD-ROM). Several other formats were further derived from these, including write-once audio and data storage (CD-R), rewritable media (CD... | When did Audio CDs become available for purchase? | {
"answer_start": [
513
],
"text": [
"1982"
]
} |
572ec5f7cb0c0d14000f1537 | Compact_disc | Compact Disc (CD) is a digital optical disc data storage format. The format was originally developed to store and play only sound recordings but was later adapted for storage of data (CD-ROM). Several other formats were further derived from these, including write-once audio and data storage (CD-R), rewritable media (CD... | What does CD stand for? | {
"answer_start": [
0
],
"text": [
"Compact Disc"
]
} |
572ec5f7cb0c0d14000f1538 | Compact_disc | Compact Disc (CD) is a digital optical disc data storage format. The format was originally developed to store and play only sound recordings but was later adapted for storage of data (CD-ROM). Several other formats were further derived from these, including write-once audio and data storage (CD-R), rewritable media (CD... | What does SVCD stand for? | {
"answer_start": [
352
],
"text": [
"Super Video Compact Disc"
]
} |
572ec5f7cb0c0d14000f1539 | Compact_disc | Compact Disc (CD) is a digital optical disc data storage format. The format was originally developed to store and play only sound recordings but was later adapted for storage of data (CD-ROM). Several other formats were further derived from these, including write-once audio and data storage (CD-R), rewritable media (CD... | What were CD's originally created to store? | {
"answer_start": [
124
],
"text": [
"sound recordings"
]
} |
572f5fe6947a6a140053c8db | Compact_disc | Compact Disc (CD) is a digital optical disc data storage format. The format was originally developed to store and play only sound recordings but was later adapted for storage of data (CD-ROM). Several other formats were further derived from these, including write-once audio and data storage (CD-R), rewritable media (CD... | What does SVCD stand for? | {
"answer_start": [
352
],
"text": [
"Super Video Compact Disc"
]
} |
572f5fe6947a6a140053c8dc | Compact_disc | Compact Disc (CD) is a digital optical disc data storage format. The format was originally developed to store and play only sound recordings but was later adapted for storage of data (CD-ROM). Several other formats were further derived from these, including write-once audio and data storage (CD-R), rewritable media (CD... | In what year were compact discs realesed for purchase? | {
"answer_start": [
513
],
"text": [
"1982"
]
} |
572f5fe6947a6a140053c8de | Compact_disc | Compact Disc (CD) is a digital optical disc data storage format. The format was originally developed to store and play only sound recordings but was later adapted for storage of data (CD-ROM). Several other formats were further derived from these, including write-once audio and data storage (CD-R), rewritable media (CD... | What was the original intended format for CDs? | {
"answer_start": [
44
],
"text": [
"data storage"
]
} |
572ec816c246551400ce4656 | Compact_disc | In 2004, worldwide sales of audio CDs, CD-ROMs and CD-Rs reached about 30 billion discs. By 2007, 200 billion CDs had been sold worldwide. CDs are increasingly being replaced by other forms of digital storage and distribution, with the result that audio CD sales rates in the U.S. have dropped about 50% from their peak;... | In what year were digital and physical music sales the same? | {
"answer_start": [
409
],
"text": [
"2014"
]
} |
572ec816c246551400ce4657 | Compact_disc | In 2004, worldwide sales of audio CDs, CD-ROMs and CD-Rs reached about 30 billion discs. By 2007, 200 billion CDs had been sold worldwide. CDs are increasingly being replaced by other forms of digital storage and distribution, with the result that audio CD sales rates in the U.S. have dropped about 50% from their peak;... | How many CDs had been distrubuted worldwide by 2007? | {
"answer_start": [
98
],
"text": [
"200 billion"
]
} |
572ec816c246551400ce4659 | Compact_disc | In 2004, worldwide sales of audio CDs, CD-ROMs and CD-Rs reached about 30 billion discs. By 2007, 200 billion CDs had been sold worldwide. CDs are increasingly being replaced by other forms of digital storage and distribution, with the result that audio CD sales rates in the U.S. have dropped about 50% from their peak;... | In 2004 how many CDs had been sold around the world? | {
"answer_start": [
3
],
"text": [
"2004"
]
} |
572ec816c246551400ce4658 | Compact_disc | In 2004, worldwide sales of audio CDs, CD-ROMs and CD-Rs reached about 30 billion discs. By 2007, 200 billion CDs had been sold worldwide. CDs are increasingly being replaced by other forms of digital storage and distribution, with the result that audio CD sales rates in the U.S. have dropped about 50% from their peak;... | What percent decrease did audio CD sales experience? | {
"answer_start": [
300
],
"text": [
"50%"
]
} |
572ec816c246551400ce465a | Compact_disc | In 2004, worldwide sales of audio CDs, CD-ROMs and CD-Rs reached about 30 billion discs. By 2007, 200 billion CDs had been sold worldwide. CDs are increasingly being replaced by other forms of digital storage and distribution, with the result that audio CD sales rates in the U.S. have dropped about 50% from their peak;... | What has caused a decrease in CD sales? | {
"answer_start": [
178
],
"text": [
"other forms of digital storage and distribution"
]
} |
572f6096b2c2fd140056808d | Compact_disc | In 2004, worldwide sales of audio CDs, CD-ROMs and CD-Rs reached about 30 billion discs. By 2007, 200 billion CDs had been sold worldwide. CDs are increasingly being replaced by other forms of digital storage and distribution, with the result that audio CD sales rates in the U.S. have dropped about 50% from their peak;... | In 2004 how many CDs had been sold around the world? | {
"answer_start": [
71
],
"text": [
"30 billion"
]
} |
572f6096b2c2fd140056808c | Compact_disc | In 2004, worldwide sales of audio CDs, CD-ROMs and CD-Rs reached about 30 billion discs. By 2007, 200 billion CDs had been sold worldwide. CDs are increasingly being replaced by other forms of digital storage and distribution, with the result that audio CD sales rates in the U.S. have dropped about 50% from their peak;... | How many CDs had been distrubuted around the world by 2007? | {
"answer_start": [
98
],
"text": [
"200 billion"
]
} |
572f6096b2c2fd140056808e | Compact_disc | In 2004, worldwide sales of audio CDs, CD-ROMs and CD-Rs reached about 30 billion discs. By 2007, 200 billion CDs had been sold worldwide. CDs are increasingly being replaced by other forms of digital storage and distribution, with the result that audio CD sales rates in the U.S. have dropped about 50% from their peak;... | What has caused a decrease in CD sales? | {
"answer_start": [
178
],
"text": [
"other forms of digital storage"
]
} |
572ec92bdfa6aa1500f8d3b5 | Compact_disc | The Compact Disc is an evolution of LaserDisc technology, where a focused laser beam is used that enables the high information density required for high-quality digital audio signals. Prototypes were developed by Philips and Sony independently in the late 1970s. In 1979, Sony and Philips set up a joint task force of en... | Who created Compact Disc prototypes in the 1970s? | {
"answer_start": [
213
],
"text": [
"Philips and Sony"
]
} |
572ec92bdfa6aa1500f8d3b6 | Compact_disc | The Compact Disc is an evolution of LaserDisc technology, where a focused laser beam is used that enables the high information density required for high-quality digital audio signals. Prototypes were developed by Philips and Sony independently in the late 1970s. In 1979, Sony and Philips set up a joint task force of en... | How lond did the creation of Red Book CD-DA standard take? | {
"answer_start": [
370
],
"text": [
"a year"
]
} |
572ec92bdfa6aa1500f8d3b7 | Compact_disc | The Compact Disc is an evolution of LaserDisc technology, where a focused laser beam is used that enables the high information density required for high-quality digital audio signals. Prototypes were developed by Philips and Sony independently in the late 1970s. In 1979, Sony and Philips set up a joint task force of en... | To what does the compact disc owe its prosperity? | {
"answer_start": [
720
],
"text": [
"the cooperation between Philips and Sony"
]
} |
572ec92bdfa6aa1500f8d3b8 | Compact_disc | The Compact Disc is an evolution of LaserDisc technology, where a focused laser beam is used that enables the high information density required for high-quality digital audio signals. Prototypes were developed by Philips and Sony independently in the late 1970s. In 1979, Sony and Philips set up a joint task force of en... | How many CD players were sold in the United States in their first year? | {
"answer_start": [
594
],
"text": [
"400,000"
]
} |
572f6c84b2c2fd1400568101 | Compact_disc | The Compact Disc is an evolution of LaserDisc technology, where a focused laser beam is used that enables the high information density required for high-quality digital audio signals. Prototypes were developed by Philips and Sony independently in the late 1970s. In 1979, Sony and Philips set up a joint task force of en... | What did the CD evolve from? | {
"answer_start": [
36
],
"text": [
"LaserDisc"
]
} |
572f6c84b2c2fd1400568102 | Compact_disc | The Compact Disc is an evolution of LaserDisc technology, where a focused laser beam is used that enables the high information density required for high-quality digital audio signals. Prototypes were developed by Philips and Sony independently in the late 1970s. In 1979, Sony and Philips set up a joint task force of en... | What made it possible for CDs to be played on any companies CD player? | {
"answer_start": [
831
],
"text": [
"unified design"
]
} |
572f6c84b2c2fd1400568104 | Compact_disc | The Compact Disc is an evolution of LaserDisc technology, where a focused laser beam is used that enables the high information density required for high-quality digital audio signals. Prototypes were developed by Philips and Sony independently in the late 1970s. In 1979, Sony and Philips set up a joint task force of en... | What year did CD players become available for purchase? | {
"answer_start": [
497
],
"text": [
"1982"
]
} |
572f6c84b2c2fd1400568103 | Compact_disc | The Compact Disc is an evolution of LaserDisc technology, where a focused laser beam is used that enables the high information density required for high-quality digital audio signals. Prototypes were developed by Philips and Sony independently in the late 1970s. In 1979, Sony and Philips set up a joint task force of en... | To what does the compact disc owe its prosperity? | {
"answer_start": [
724
],
"text": [
"cooperation between Philips and Sony"
]
} |
572ecc7bdfa6aa1500f8d3d3 | Compact_disc | In 1974, L. Ottens, director of the audio division of Philips, started a small group with the aim to develop an analog optical audio disc with a diameter of 20 cm and a sound quality superior to that of the vinyl record. However, due to the unsatisfactory performance of the analog format, two Philips research engineers... | In what year did Philips institute a laboratory to create a digital audio disc? | {
"answer_start": [
368
],
"text": [
"1977"
]
} |
572ecc7bdfa6aa1500f8d3d4 | Compact_disc | In 1974, L. Ottens, director of the audio division of Philips, started a small group with the aim to develop an analog optical audio disc with a diameter of 20 cm and a sound quality superior to that of the vinyl record. However, due to the unsatisfactory performance of the analog format, two Philips research engineers... | What was the proposed diameter for the original compact disc? | {
"answer_start": [
523
],
"text": [
"11.5 cm"
]
} |
572ecc7bdfa6aa1500f8d3d5 | Compact_disc | In 1974, L. Ottens, director of the audio division of Philips, started a small group with the aim to develop an analog optical audio disc with a diameter of 20 cm and a sound quality superior to that of the vinyl record. However, due to the unsatisfactory performance of the analog format, two Philips research engineers... | What year did Philips propse the idea of a digital audio format? | {
"answer_start": [
359
],
"text": [
"1974"
]
} |
572ecc7bdfa6aa1500f8d3d6 | Compact_disc | In 1974, L. Ottens, director of the audio division of Philips, started a small group with the aim to develop an analog optical audio disc with a diameter of 20 cm and a sound quality superior to that of the vinyl record. However, due to the unsatisfactory performance of the analog format, two Philips research engineers... | Who was the director of the Philips audio division in 1974? | {
"answer_start": [
9
],
"text": [
"L. Ottens"
]
} |
572ecf7acb0c0d14000f15c8 | Compact_disc | Heitaro Nakajima, who developed an early digital audio recorder within Japan's national public broadcasting organization NHK in 1970, became general manager of Sony's audio department in 1971. His team developed a digital PCM adaptor audio tape recorder using a Betamax video recorder in 1973. After this, in 1974 the le... | Where was the 62nd AES Convention held? | {
"answer_start": [
1069
],
"text": [
"Brussels"
]
} |
572ecf7bcb0c0d14000f15c9 | Compact_disc | Heitaro Nakajima, who developed an early digital audio recorder within Japan's national public broadcasting organization NHK in 1970, became general manager of Sony's audio department in 1971. His team developed a digital PCM adaptor audio tape recorder using a Betamax video recorder in 1973. After this, in 1974 the le... | Who was the general manger of Sony's audio department in 1971? | {
"answer_start": [
0
],
"text": [
"Heitaro Nakajima"
]
} |
572ecf7bcb0c0d14000f15ca | Compact_disc | Heitaro Nakajima, who developed an early digital audio recorder within Japan's national public broadcasting organization NHK in 1970, became general manager of Sony's audio department in 1971. His team developed a digital PCM adaptor audio tape recorder using a Betamax video recorder in 1973. After this, in 1974 the le... | What year did Sony first exhibit the use of an optical digital audio disc? | {
"answer_start": [
460
],
"text": [
"1976"
]
} |
572ecf7bcb0c0d14000f15cb | Compact_disc | Heitaro Nakajima, who developed an early digital audio recorder within Japan's national public broadcasting organization NHK in 1970, became general manager of Sony's audio department in 1971. His team developed a digital PCM adaptor audio tape recorder using a Betamax video recorder in 1973. After this, in 1974 the le... | What did Nakajima's team use to create a digital PCM adaptor audio tape recorder? | {
"answer_start": [
260
],
"text": [
"a Betamax video recorder"
]
} |
572ecf7bcb0c0d14000f15cc | Compact_disc | Heitaro Nakajima, who developed an early digital audio recorder within Japan's national public broadcasting organization NHK in 1970, became general manager of Sony's audio department in 1971. His team developed a digital PCM adaptor audio tape recorder using a Betamax video recorder in 1973. After this, in 1974 the le... | Where was the Philips Introduce Compact disc conference held? | {
"answer_start": [
1303
],
"text": [
"Eindhoven, Netherlands"
]
} |
572f62b404bcaa1900d768b5 | Compact_disc | Heitaro Nakajima, who developed an early digital audio recorder within Japan's national public broadcasting organization NHK in 1970, became general manager of Sony's audio department in 1971. His team developed a digital PCM adaptor audio tape recorder using a Betamax video recorder in 1973. After this, in 1974 the le... | What did Nakajima's team use to create a digital PCM adaptor audio tape recorder? | {
"answer_start": [
262
],
"text": [
"Betamax video recorder"
]
} |
572f62b404bcaa1900d768b9 | Compact_disc | Heitaro Nakajima, who developed an early digital audio recorder within Japan's national public broadcasting organization NHK in 1970, became general manager of Sony's audio department in 1971. His team developed a digital PCM adaptor audio tape recorder using a Betamax video recorder in 1973. After this, in 1974 the le... | When did Sony release it's AES technical paper? | {
"answer_start": [
1123
],
"text": [
"1 March 1979"
]
} |
572ed1a3dfa6aa1500f8d401 | Compact_disc | As a result, in 1979, Sony and Philips set up a joint task force of engineers to design a new digital audio disc. Led by engineers Kees Schouhamer Immink and Toshitada Doi, the research pushed forward laser and optical disc technology. After a year of experimentation and discussion, the task force produced the Red Book... | In what year did Sony and Philips band together to design a new digital audio disc? | {
"answer_start": [
16
],
"text": [
"1979"
]
} |
572ed1a3dfa6aa1500f8d402 | Compact_disc | As a result, in 1979, Sony and Philips set up a joint task force of engineers to design a new digital audio disc. Led by engineers Kees Schouhamer Immink and Toshitada Doi, the research pushed forward laser and optical disc technology. After a year of experimentation and discussion, the task force produced the Red Book... | What year was the Red Book CD-DA standard released? | {
"answer_start": [
356
],
"text": [
"1980"
]
} |
572ed1a3dfa6aa1500f8d403 | Compact_disc | As a result, in 1979, Sony and Philips set up a joint task force of engineers to design a new digital audio disc. Led by engineers Kees Schouhamer Immink and Toshitada Doi, the research pushed forward laser and optical disc technology. After a year of experimentation and discussion, the task force produced the Red Book... | When did the IEC isntigate the Red Book CD-DA as an international standard? | {
"answer_start": [
439
],
"text": [
"1987"
]
} |
572ed1a3dfa6aa1500f8d404 | Compact_disc | As a result, in 1979, Sony and Philips set up a joint task force of engineers to design a new digital audio disc. Led by engineers Kees Schouhamer Immink and Toshitada Doi, the research pushed forward laser and optical disc technology. After a year of experimentation and discussion, the task force produced the Red Book... | Who headed the 1979 Sony and Philips digital audio disc task force? | {
"answer_start": [
131
],
"text": [
"Kees Schouhamer Immink and Toshitada Doi"
]
} |
572ed426dfa6aa1500f8d41b | Compact_disc | The Japanese launch was followed in March 1983 by the introduction of CD players and discs to Europe and North America (where CBS Records released sixteen titles). This event is often seen as the "Big Bang" of the digital audio revolution. The new audio disc was enthusiastically received, especially in the early-adopti... | Who first sold a million copies on CD? | {
"answer_start": [
645
],
"text": [
"Dire Straits"
]
} |
572ed426dfa6aa1500f8d41c | Compact_disc | The Japanese launch was followed in March 1983 by the introduction of CD players and discs to Europe and North America (where CBS Records released sixteen titles). This event is often seen as the "Big Bang" of the digital audio revolution. The new audio disc was enthusiastically received, especially in the early-adopti... | Which artist was the first to have their full catalogue converted to CD? | {
"answer_start": [
771
],
"text": [
"David Bowie"
]
} |
572ed426dfa6aa1500f8d41d | Compact_disc | The Japanese launch was followed in March 1983 by the introduction of CD players and discs to Europe and North America (where CBS Records released sixteen titles). This event is often seen as the "Big Bang" of the digital audio revolution. The new audio disc was enthusiastically received, especially in the early-adopti... | What year was the Dire Straits album Brothers in Arms released? | {
"answer_start": [
670
],
"text": [
"1985"
]
} |
572ed426dfa6aa1500f8d41e | Compact_disc | The Japanese launch was followed in March 1983 by the introduction of CD players and discs to Europe and North America (where CBS Records released sixteen titles). This event is often seen as the "Big Bang" of the digital audio revolution. The new audio disc was enthusiastically received, especially in the early-adopti... | How many studio albums did David Bowie release in February 1985? | {
"answer_start": [
790
],
"text": [
"15"
]
} |
572ed426dfa6aa1500f8d41f | Compact_disc | The Japanese launch was followed in March 1983 by the introduction of CD players and discs to Europe and North America (where CBS Records released sixteen titles). This event is often seen as the "Big Bang" of the digital audio revolution. The new audio disc was enthusiastically received, especially in the early-adopti... | How many CDs were mass produced in 1988? | {
"answer_start": [
907
],
"text": [
"400 million"
]
} |
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