id stringlengths 24 24 | title stringlengths 3 59 | context stringlengths 151 3.71k | question stringlengths 12 217 | answers dict |
|---|---|---|---|---|
572963d03f37b31900478311 | Green | In some languages, including old Chinese, Thai, old Japanese, and Vietnamese, the same word can mean either blue or green. The Chinese character 青 (pronounced qīng in Mandarin, ao in Japanese, and thanh in Sino-Vietnamese) has a meaning that covers both blue and green; blue and green are traditionally considered shades... | How many terms does Japanese have for the color green? | {
"text": [
"two"
],
"answer_start": [
443
]
} |
572963d03f37b31900478312 | Green | In some languages, including old Chinese, Thai, old Japanese, and Vietnamese, the same word can mean either blue or green. The Chinese character 青 (pronounced qīng in Mandarin, ao in Japanese, and thanh in Sino-Vietnamese) has a meaning that covers both blue and green; blue and green are traditionally considered shades... | What is the Vietnamese word for both blue and green? | {
"text": [
"xanh"
],
"answer_start": [
1132
]
} |
572963d03f37b31900478313 | Green | In some languages, including old Chinese, Thai, old Japanese, and Vietnamese, the same word can mean either blue or green. The Chinese character 青 (pronounced qīng in Mandarin, ao in Japanese, and thanh in Sino-Vietnamese) has a meaning that covers both blue and green; blue and green are traditionally considered shades... | What are the colors of traffic lights in Japan? | {
"text": [
"the same colors that other countries have"
],
"answer_start": [
748
]
} |
5729658d1d0469140077939f | Green | "Green" in modern European languages corresponds to about 520–570 nm, but many historical and non-European languages make other choices, e.g. using a term for the range of ca. 450–530 nm ("blue/green") and another for ca. 530–590 nm ("green/yellow").[citation needed] In the comparative study of color terms in the world... | In which language does the word for "green" also mean "rank" and "smelly"? | {
"text": [
"Thai"
],
"answer_start": [
879
]
} |
5729658d1d046914007793a0 | Green | "Green" in modern European languages corresponds to about 520–570 nm, but many historical and non-European languages make other choices, e.g. using a term for the range of ca. 450–530 nm ("blue/green") and another for ca. 530–590 nm ("green/yellow").[citation needed] In the comparative study of color terms in the world... | In what range does the color green fall in modern European languages? | {
"text": [
"520–570 nm"
],
"answer_start": [
58
]
} |
5729658d1d046914007793a1 | Green | "Green" in modern European languages corresponds to about 520–570 nm, but many historical and non-European languages make other choices, e.g. using a term for the range of ca. 450–530 nm ("blue/green") and another for ca. 530–590 nm ("green/yellow").[citation needed] In the comparative study of color terms in the world... | What is the origin of the word "orange"? | {
"text": [
"the name of a fruit"
],
"answer_start": [
847
]
} |
572966243f37b31900478333 | Green | In the subtractive color system, used in painting and color printing, green is created by a combination of yellow and blue, or yellow and cyan; in the RGB color model, used on television and computer screens, it is one of the additive primary colors, along with red and blue, which are mixed in different combinations to... | In which color system is green created by combining yellow and blue? | {
"text": [
"subtractive"
],
"answer_start": [
7
]
} |
572966243f37b31900478334 | Green | In the subtractive color system, used in painting and color printing, green is created by a combination of yellow and blue, or yellow and cyan; in the RGB color model, used on television and computer screens, it is one of the additive primary colors, along with red and blue, which are mixed in different combinations to... | In which color model is green one of the additive primary colors? | {
"text": [
"RGB"
],
"answer_start": [
151
]
} |
572966243f37b31900478335 | Green | In the subtractive color system, used in painting and color printing, green is created by a combination of yellow and blue, or yellow and cyan; in the RGB color model, used on television and computer screens, it is one of the additive primary colors, along with red and blue, which are mixed in different combinations to... | What is the complement of green on the HSV color wheel? | {
"text": [
"magenta"
],
"answer_start": [
432
]
} |
572966243f37b31900478336 | Green | In the subtractive color system, used in painting and color printing, green is created by a combination of yellow and blue, or yellow and cyan; in the RGB color model, used on television and computer screens, it is one of the additive primary colors, along with red and blue, which are mixed in different combinations to... | What is the complement of green on the traditional color wheel? | {
"text": [
"red"
],
"answer_start": [
647
]
} |
572966e11d046914007793a5 | Green | In additive color devices such as computer displays and televisions, one of the primary light sources is typically a narrow-spectrum yellowish-green of dominant wavelength ~550 nm; this "green" primary is combined with an orangish-red "red" primary and a purplish-blue "blue" primary to produce any color in between – th... | What is produced on a computer display when light from the green primary is mixed with some light from the blue primary? | {
"text": [
"A unique green"
],
"answer_start": [
339
]
} |
572966e11d046914007793a6 | Green | In additive color devices such as computer displays and televisions, one of the primary light sources is typically a narrow-spectrum yellowish-green of dominant wavelength ~550 nm; this "green" primary is combined with an orangish-red "red" primary and a purplish-blue "blue" primary to produce any color in between – th... | At what wavelength is green on computer displays? | {
"text": [
"~550 nm"
],
"answer_start": [
172
]
} |
572966e11d046914007793a7 | Green | In additive color devices such as computer displays and televisions, one of the primary light sources is typically a narrow-spectrum yellowish-green of dominant wavelength ~550 nm; this "green" primary is combined with an orangish-red "red" primary and a purplish-blue "blue" primary to produce any color in between – th... | What type of color devices are computer displays and televisions? | {
"text": [
"additive"
],
"answer_start": [
3
]
} |
5729681d6aef051400154e2a | Green | Lasers emitting in the green part of the spectrum are widely available to the general public in a wide range of output powers. Green laser pointers outputting at 532 nm (563.5 THz) are relatively inexpensive compared to other wavelengths of the same power, and are very popular due to their good beam quality and very hi... | Which color of lasers are widely available to the general public? | {
"text": [
"green"
],
"answer_start": [
23
]
} |
5729681d6aef051400154e2b | Green | Lasers emitting in the green part of the spectrum are widely available to the general public in a wide range of output powers. Green laser pointers outputting at 532 nm (563.5 THz) are relatively inexpensive compared to other wavelengths of the same power, and are very popular due to their good beam quality and very hi... | What is the wavelength of inexpensive green lasers? | {
"text": [
"532 nm"
],
"answer_start": [
162
]
} |
5729681d6aef051400154e2c | Green | Lasers emitting in the green part of the spectrum are widely available to the general public in a wide range of output powers. Green laser pointers outputting at 532 nm (563.5 THz) are relatively inexpensive compared to other wavelengths of the same power, and are very popular due to their good beam quality and very hi... | What type of technology is used in the most common green lasers? | {
"text": [
"diode pumped solid state"
],
"answer_start": [
377
]
} |
5729681d6aef051400154e2d | Green | Lasers emitting in the green part of the spectrum are widely available to the general public in a wide range of output powers. Green laser pointers outputting at 532 nm (563.5 THz) are relatively inexpensive compared to other wavelengths of the same power, and are very popular due to their good beam quality and very hi... | What is the range of green wavelengths available when using DPSS technology? | {
"text": [
"501 nm to 543 nm"
],
"answer_start": [
1031
]
} |
5729693f3f37b3190047834d | Green | Many minerals provide pigments which have been used in green paints and dyes over the centuries. Pigments, in this case, are minerals which reflect the color green, rather that emitting it through luminescent or phosphorescent qualities. The large number of green pigments makes it impossible to mention them all. Among ... | What do pigments do with the color green? | {
"text": [
"reflect"
],
"answer_start": [
140
]
} |
5729693f3f37b3190047834e | Green | Many minerals provide pigments which have been used in green paints and dyes over the centuries. Pigments, in this case, are minerals which reflect the color green, rather that emitting it through luminescent or phosphorescent qualities. The large number of green pigments makes it impossible to mention them all. Among ... | What are green paints and dyes usually made of? | {
"text": [
"minerals"
],
"answer_start": [
5
]
} |
5729693f3f37b3190047834f | Green | Many minerals provide pigments which have been used in green paints and dyes over the centuries. Pigments, in this case, are minerals which reflect the color green, rather that emitting it through luminescent or phosphorescent qualities. The large number of green pigments makes it impossible to mention them all. Among ... | What is the main chemical that causes emeralds to be green? | {
"text": [
"chromium"
],
"answer_start": [
420
]
} |
5729693f3f37b31900478350 | Green | Many minerals provide pigments which have been used in green paints and dyes over the centuries. Pigments, in this case, are minerals which reflect the color green, rather that emitting it through luminescent or phosphorescent qualities. The large number of green pigments makes it impossible to mention them all. Among ... | What is the source of the green color in malachite pigments? | {
"text": [
"Copper"
],
"answer_start": [
840
]
} |
5729693f3f37b31900478351 | Green | Many minerals provide pigments which have been used in green paints and dyes over the centuries. Pigments, in this case, are minerals which reflect the color green, rather that emitting it through luminescent or phosphorescent qualities. The large number of green pigments makes it impossible to mention them all. Among ... | What is the source of amazonite's color? | {
"text": [
"small quantities of lead and water in the feldspar"
],
"answer_start": [
788
]
} |
57296ac9af94a219006aa3d5 | Green | Verdigris is made by placing a plate or blade of copper, brass or bronze, slightly warmed, into a vat of fermenting wine, leaving it there for several weeks, and then scraping off and drying the green powder that forms on the metal. The process of making verdigris was described in ancient times by Pliny. It was used by... | What is made by placing a plate of blade of copper, brass, or bronze into vat of fermenting wine for several weeks, then scraping off and drying the green powder? | {
"text": [
"Verdigris"
],
"answer_start": [
0
]
} |
57296ac9af94a219006aa3d6 | Green | Verdigris is made by placing a plate or blade of copper, brass or bronze, slightly warmed, into a vat of fermenting wine, leaving it there for several weeks, and then scraping off and drying the green powder that forms on the metal. The process of making verdigris was described in ancient times by Pliny. It was used by... | Who described the process of making verdigris in ancient times? | {
"text": [
"Pliny"
],
"answer_start": [
299
]
} |
57296ac9af94a219006aa3d7 | Green | Verdigris is made by placing a plate or blade of copper, brass or bronze, slightly warmed, into a vat of fermenting wine, leaving it there for several weeks, and then scraping off and drying the green powder that forms on the metal. The process of making verdigris was described in ancient times by Pliny. It was used by... | In what city did the Romans use verdigris in murals? | {
"text": [
"Pompeii"
],
"answer_start": [
349
]
} |
57296ac9af94a219006aa3d8 | Green | Verdigris is made by placing a plate or blade of copper, brass or bronze, slightly warmed, into a vat of fermenting wine, leaving it there for several weeks, and then scraping off and drying the green powder that forms on the metal. The process of making verdigris was described in ancient times by Pliny. It was used by... | What would verdigris do to other colors that it came in contact with? | {
"text": [
"ruin"
],
"answer_start": [
605
]
} |
57296ac9af94a219006aa3d9 | Green | Verdigris is made by placing a plate or blade of copper, brass or bronze, slightly warmed, into a vat of fermenting wine, leaving it there for several weeks, and then scraping off and drying the green powder that forms on the metal. The process of making verdigris was described in ancient times by Pliny. It was used by... | Which famous artist warned other artists not to use verdigris? | {
"text": [
"Leonardo da Vinci"
],
"answer_start": [
675
]
} |
57296b763f37b31900478379 | Green | There is no natural source for green food colorings which has been approved by the US Food and Drug Administration. Chlorophyll, the E numbers E140 and E141, is the most common green chemical found in nature, and only allowed in certain medicines and cosmetic materials. Quinoline Yellow (E104) is a commonly used colori... | Which green food coloring is known to cause hyperactivity, asthma, urticaria, and insomnia? | {
"text": [
"Green S (E142)"
],
"answer_start": [
410
]
} |
57296b763f37b3190047837a | Green | There is no natural source for green food colorings which has been approved by the US Food and Drug Administration. Chlorophyll, the E numbers E140 and E141, is the most common green chemical found in nature, and only allowed in certain medicines and cosmetic materials. Quinoline Yellow (E104) is a commonly used colori... | What is a commonly used food coloring in the United Kingdom that is banned in Australia, Japan, Norway, and the United States? | {
"text": [
"Quinoline Yellow"
],
"answer_start": [
271
]
} |
57296b763f37b3190047837b | Green | There is no natural source for green food colorings which has been approved by the US Food and Drug Administration. Chlorophyll, the E numbers E140 and E141, is the most common green chemical found in nature, and only allowed in certain medicines and cosmetic materials. Quinoline Yellow (E104) is a commonly used colori... | What is the most common green chemical found in nature? | {
"text": [
"Chlorophyll"
],
"answer_start": [
116
]
} |
57296bd76aef051400154e4c | Green | To create green sparks, fireworks use barium salts, such as barium chlorate, barium nitrate crystals, or barium chloride, also used for green fireplace logs. Copper salts typically burn blue, but cupric chloride (also known as "campfire blue") can also produce green flames. Green pyrotechnic flares can use a mix ratio ... | How do fireworks create green sparks? | {
"text": [
"barium salts"
],
"answer_start": [
38
]
} |
57296bd76aef051400154e4d | Green | To create green sparks, fireworks use barium salts, such as barium chlorate, barium nitrate crystals, or barium chloride, also used for green fireplace logs. Copper salts typically burn blue, but cupric chloride (also known as "campfire blue") can also produce green flames. Green pyrotechnic flares can use a mix ratio ... | Which copper salt can produce green glames? | {
"text": [
"cupric chloride"
],
"answer_start": [
196
]
} |
57296bd76aef051400154e4e | Green | To create green sparks, fireworks use barium salts, such as barium chlorate, barium nitrate crystals, or barium chloride, also used for green fireplace logs. Copper salts typically burn blue, but cupric chloride (also known as "campfire blue") can also produce green flames. Green pyrotechnic flares can use a mix ratio ... | What is the ratio of boron to potassium nitrate in green pyrotechnic flares? | {
"text": [
"75:25"
],
"answer_start": [
320
]
} |
57296cd06aef051400154e64 | Green | Green is common in nature, as many plants are green because of a complex chemical known as chlorophyll, which is involved in photosynthesis. Chlorophyll absorbs the long wavelengths of light (red) and short wavelengths of light (blue) much more efficiently than the wavelengths that appear green to the human eye, so lig... | Why are many plants green? | {
"text": [
"chlorophyll"
],
"answer_start": [
91
]
} |
57296cd06aef051400154e65 | Green | Green is common in nature, as many plants are green because of a complex chemical known as chlorophyll, which is involved in photosynthesis. Chlorophyll absorbs the long wavelengths of light (red) and short wavelengths of light (blue) much more efficiently than the wavelengths that appear green to the human eye, so lig... | What does chlorophyll do with long (red) and short (blue) wavelengths of light? | {
"text": [
"absorbs"
],
"answer_start": [
153
]
} |
57296cd06aef051400154e66 | Green | Green is common in nature, as many plants are green because of a complex chemical known as chlorophyll, which is involved in photosynthesis. Chlorophyll absorbs the long wavelengths of light (red) and short wavelengths of light (blue) much more efficiently than the wavelengths that appear green to the human eye, so lig... | Where did chlorophyll first arise? | {
"text": [
"organisms living in oceans"
],
"answer_start": [
430
]
} |
57296da23f37b31900478391 | Green | Animals typically use the color green as camouflage, blending in with the chlorophyll green of the surrounding environment. Green animals include, especially, amphibians, reptiles, and some fish, birds and insects. Most fish, reptiles, amphibians, and birds appear green because of a reflection of blue light coming thro... | How do animals typically use the color green? | {
"text": [
"camouflage"
],
"answer_start": [
41
]
} |
57296da23f37b31900478393 | Green | Animals typically use the color green as camouflage, blending in with the chlorophyll green of the surrounding environment. Green animals include, especially, amphibians, reptiles, and some fish, birds and insects. Most fish, reptiles, amphibians, and birds appear green because of a reflection of blue light coming thro... | What is a chemical that can cause green hue in birds? | {
"text": [
"Turacoverdin"
],
"answer_start": [
539
]
} |
57296da23f37b31900478394 | Green | Animals typically use the color green as camouflage, blending in with the chlorophyll green of the surrounding environment. Green animals include, especially, amphibians, reptiles, and some fish, birds and insects. Most fish, reptiles, amphibians, and birds appear green because of a reflection of blue light coming thro... | What is a protein that carries copper ions in chelation? | {
"text": [
"ceruloplasmin"
],
"answer_start": [
1116
]
} |
57296da23f37b31900478395 | Green | Animals typically use the color green as camouflage, blending in with the chlorophyll green of the surrounding environment. Green animals include, especially, amphibians, reptiles, and some fish, birds and insects. Most fish, reptiles, amphibians, and birds appear green because of a reflection of blue light coming thro... | What is the green pigment in bile called? | {
"text": [
"biliverdin"
],
"answer_start": [
1073
]
} |
572a16ccaf94a219006aa7d9 | Green | There is no green pigment in green eyes; like the color of blue eyes, it is an optical illusion; its appearance is caused by the combination of an amber or light brown pigmentation of the stroma, given by a low or moderate concentration of melanin, with the blue tone imparted by the Rayleigh scattering of the reflected... | What is the appearance of green in th eyes attributed to? | {
"text": [
"an optical illusion"
],
"answer_start": [
76
]
} |
572a16ccaf94a219006aa7da | Green | There is no green pigment in green eyes; like the color of blue eyes, it is an optical illusion; its appearance is caused by the combination of an amber or light brown pigmentation of the stroma, given by a low or moderate concentration of melanin, with the blue tone imparted by the Rayleigh scattering of the reflected... | Where are green eyes most common? | {
"text": [
"Northern and Central Europe"
],
"answer_start": [
358
]
} |
572a16ccaf94a219006aa7db | Green | There is no green pigment in green eyes; like the color of blue eyes, it is an optical illusion; its appearance is caused by the combination of an amber or light brown pigmentation of the stroma, given by a low or moderate concentration of melanin, with the blue tone imparted by the Rayleigh scattering of the reflected... | Among Icelandic and Dutch adults, which sex more commonly has green eyes? | {
"text": [
"women"
],
"answer_start": [
632
]
} |
572a17786aef051400155260 | Green | In Ancient Egypt green was the symbol of regeneration and rebirth, and of the crops made possible by the annual flooding of the Nile. For painting on the walls of tombs or on papyrus, Egyptian artists used finely-ground malachite, mined in the west Sinai and the eastern desert- A paintbox with malachite pigment was fou... | Which color was the symbol to regeneration and rebirth in Ancient Egypt? | {
"text": [
"green"
],
"answer_start": [
17
]
} |
572a17786aef051400155261 | Green | In Ancient Egypt green was the symbol of regeneration and rebirth, and of the crops made possible by the annual flooding of the Nile. For painting on the walls of tombs or on papyrus, Egyptian artists used finely-ground malachite, mined in the west Sinai and the eastern desert- A paintbox with malachite pigment was fou... | What did Egyptian artists grind to use to paint on the walls of tombs or on papyrus? | {
"text": [
"malachite"
],
"answer_start": [
220
]
} |
572a17786aef051400155262 | Green | In Ancient Egypt green was the symbol of regeneration and rebirth, and of the crops made possible by the annual flooding of the Nile. For painting on the walls of tombs or on papyrus, Egyptian artists used finely-ground malachite, mined in the west Sinai and the eastern desert- A paintbox with malachite pigment was fou... | How did Egyptians dye fabrics yellow? | {
"text": [
"saffron"
],
"answer_start": [
523
]
} |
572a18b96aef051400155266 | Green | For the ancient Egyptians, green had very positive associations. The hieroglyph for green represented a growing papyrus sprout, showing the close connection between green, vegetation, vigor and growth. In wall paintings, the ruler of the underworld, Osiris, was typically portrayed with a green face, because green was t... | What is the ancient Egyptian hieroglyph for green? | {
"text": [
"a growing papyrus sprout"
],
"answer_start": [
102
]
} |
572a18b96aef051400155267 | Green | For the ancient Egyptians, green had very positive associations. The hieroglyph for green represented a growing papyrus sprout, showing the close connection between green, vegetation, vigor and growth. In wall paintings, the ruler of the underworld, Osiris, was typically portrayed with a green face, because green was t... | Who was the ruler of the underworld in ancient Egypt? | {
"text": [
"Osiris"
],
"answer_start": [
250
]
} |
572a18b96aef051400155268 | Green | For the ancient Egyptians, green had very positive associations. The hieroglyph for green represented a growing papyrus sprout, showing the close connection between green, vegetation, vigor and growth. In wall paintings, the ruler of the underworld, Osiris, was typically portrayed with a green face, because green was t... | Why was green facial makeup worn by ancient Egyptians? | {
"text": [
"to protect them from evil"
],
"answer_start": [
504
]
} |
572a19b61d0469140077977b | Green | In Ancient Greece, green and blue were sometimes considered the same color, and the same word sometimes described the color of the sea and the color of trees. The philosopher Democritus described two different greens; cloron, or pale green, and prasinon, or leek green. Aristotle considered that green was located midway... | Which ancient greek philosopher considered green to be located midway between black and white? | {
"text": [
"Aristotle"
],
"answer_start": [
270
]
} |
572a19b61d0469140077977c | Green | In Ancient Greece, green and blue were sometimes considered the same color, and the same word sometimes described the color of the sea and the color of trees. The philosopher Democritus described two different greens; cloron, or pale green, and prasinon, or leek green. Aristotle considered that green was located midway... | Which ancient greek philosopher describe pale green as cloron and leek green as prasinon? | {
"text": [
"Democritus"
],
"answer_start": [
175
]
} |
572a19b61d0469140077977d | Green | In Ancient Greece, green and blue were sometimes considered the same color, and the same word sometimes described the color of the sea and the color of trees. The philosopher Democritus described two different greens; cloron, or pale green, and prasinon, or leek green. Aristotle considered that green was located midway... | Red, yellow, and black are three of the four classis colors of Greek painting. What is the fourth color? | {
"text": [
"white"
],
"answer_start": [
495
]
} |
572a1bcf3f37b319004786db | Green | The Romans had a greater appreciation for the color green; it was the color of Venus, the goddess of gardens, vegetables and vineyards.The Romans made a fine green earth pigment, which was widely used in the wall paintings of Pompeii, Herculaneum, Lyon, Vaison-la-Romaine, and other Roman cities. They also used the pigm... | What color did the Romans attribute to Venus, the goddess of gardens, vegetables, and vineyards? | {
"text": [
"green"
],
"answer_start": [
52
]
} |
572a1bcf3f37b319004786dc | Green | The Romans had a greater appreciation for the color green; it was the color of Venus, the goddess of gardens, vegetables and vineyards.The Romans made a fine green earth pigment, which was widely used in the wall paintings of Pompeii, Herculaneum, Lyon, Vaison-la-Romaine, and other Roman cities. They also used the pigm... | What pigment was made by soaking copper plates in fermenting wine? | {
"text": [
"verdigris"
],
"answer_start": [
324
]
} |
572a1bcf3f37b319004786dd | Green | The Romans had a greater appreciation for the color green; it was the color of Venus, the goddess of gardens, vegetables and vineyards.The Romans made a fine green earth pigment, which was widely used in the wall paintings of Pompeii, Herculaneum, Lyon, Vaison-la-Romaine, and other Roman cities. They also used the pigm... | How many different words for the varieties of green exist in Latin? | {
"text": [
"ten"
],
"answer_start": [
487
]
} |
572a1ccd6aef0514001552a4 | Green | Unfortunately for those who wanted or were required to wear green, there were no good vegetal green dyes which resisted washing and sunlight. Green dyes were made out of the fern, plantain, buckthorn berries, the juice of nettles and of leeks, the digitalis plant, the broom plant, the leaves of the fraxinus, or ash tre... | Why were vegetal green dyes less than ideal? | {
"text": [
"they rapidly faded or changed color"
],
"answer_start": [
359
]
} |
572a1ccd6aef0514001552a5 | Green | Unfortunately for those who wanted or were required to wear green, there were no good vegetal green dyes which resisted washing and sunlight. Green dyes were made out of the fern, plantain, buckthorn berries, the juice of nettles and of leeks, the digitalis plant, the broom plant, the leaves of the fraxinus, or ash tre... | When was a good green vegetal dye finally produced? | {
"text": [
"16th century"
],
"answer_start": [
408
]
} |
572a1ccd6aef0514001552a6 | Green | Unfortunately for those who wanted or were required to wear green, there were no good vegetal green dyes which resisted washing and sunlight. Green dyes were made out of the fern, plantain, buckthorn berries, the juice of nettles and of leeks, the digitalis plant, the broom plant, the leaves of the fraxinus, or ash tre... | What was known as yellow-weed? | {
"text": [
"reseda luteola"
],
"answer_start": [
515
]
} |
572a1d5e6aef0514001552aa | Green | In the 18th and 19th century, green was associated with the romantic movement in literature and art. The French philosopher Jean-Jacques Rousseau celebrated the virtues of nature, The German poet and philosopher Goethe declared that green was the most restful color, suitable for decorating bedrooms. Painters such as Jo... | When was green associated with the romantic movement in literature and art? | {
"text": [
"18th and 19th century"
],
"answer_start": [
7
]
} |
572a1d5e6aef0514001552ab | Green | In the 18th and 19th century, green was associated with the romantic movement in literature and art. The French philosopher Jean-Jacques Rousseau celebrated the virtues of nature, The German poet and philosopher Goethe declared that green was the most restful color, suitable for decorating bedrooms. Painters such as Jo... | Who was a French philospher that celebrated the virtues of nature? | {
"text": [
"Jean-Jacques Rousseau"
],
"answer_start": [
124
]
} |
572a1d5e6aef0514001552ac | Green | In the 18th and 19th century, green was associated with the romantic movement in literature and art. The French philosopher Jean-Jacques Rousseau celebrated the virtues of nature, The German poet and philosopher Goethe declared that green was the most restful color, suitable for decorating bedrooms. Painters such as Jo... | Which German poet and philospher declared green to be the most restful color? | {
"text": [
"Goethe"
],
"answer_start": [
212
]
} |
572a1dd76aef0514001552b0 | Green | The late nineteenth century also brought the systematic study of color theory, and particularly the study of how complementary colors such as red and green reinforced each other when they were placed next to each other. These studies were avidly followed by artists such as Vincent van Gogh. Describing his painting, The... | When did the systematic study of color theory begin? | {
"text": [
"late nineteenth century"
],
"answer_start": [
4
]
} |
572a1dd76aef0514001552b1 | Green | The late nineteenth century also brought the systematic study of color theory, and particularly the study of how complementary colors such as red and green reinforced each other when they were placed next to each other. These studies were avidly followed by artists such as Vincent van Gogh. Describing his painting, The... | Who painted The Night Cafe? | {
"text": [
"Vincent van Gogh"
],
"answer_start": [
274
]
} |
572a1dd76aef0514001552b2 | Green | The late nineteenth century also brought the systematic study of color theory, and particularly the study of how complementary colors such as red and green reinforced each other when they were placed next to each other. These studies were avidly followed by artists such as Vincent van Gogh. Describing his painting, The... | What type of colors are red and green? | {
"text": [
"complementary"
],
"answer_start": [
113
]
} |
572a1ee7af94a219006aa807 | Green | Green can communicate safety to proceed, as in traffic lights. Green and red were standardized as the colors of international railroad signals in the 19th century. The first traffic light, using green and red gas lamps, was erected in 1868 in front of the Houses of Parliament in London. It exploded the following year, ... | When were green and red standardized as the colors of international railroad signs? | {
"text": [
"19th century"
],
"answer_start": [
150
]
} |
572a1ee7af94a219006aa808 | Green | Green can communicate safety to proceed, as in traffic lights. Green and red were standardized as the colors of international railroad signals in the 19th century. The first traffic light, using green and red gas lamps, was erected in 1868 in front of the Houses of Parliament in London. It exploded the following year, ... | When was the first traffic light erected? | {
"text": [
"1868"
],
"answer_start": [
235
]
} |
572a1ee7af94a219006aa809 | Green | Green can communicate safety to proceed, as in traffic lights. Green and red were standardized as the colors of international railroad signals in the 19th century. The first traffic light, using green and red gas lamps, was erected in 1868 in front of the Houses of Parliament in London. It exploded the following year, ... | Where were the first modern electric traffic lights erected in 1912? | {
"text": [
"Salt Lake City, Utah"
],
"answer_start": [
425
]
} |
572a1ee7af94a219006aa80a | Green | Green can communicate safety to proceed, as in traffic lights. Green and red were standardized as the colors of international railroad signals in the 19th century. The first traffic light, using green and red gas lamps, was erected in 1868 in front of the Houses of Parliament in London. It exploded the following year, ... | Besides its association with danger, why was red chosen for traffic lights? | {
"text": [
"high visibility"
],
"answer_start": [
485
]
} |
572a1f9d1d046914007797af | Green | Like other common colors, green has several completely opposite associations. While it is the color most associated by Europeans and Americans with good health, it is also the color most often associated with toxicity and poison. There was a solid foundation for this association; in the nineteenth century several popul... | What was absinthe known as? | {
"text": [
"the green fairy"
],
"answer_start": [
500
]
} |
572a1f9d1d046914007797b0 | Green | Like other common colors, green has several completely opposite associations. While it is the color most associated by Europeans and Americans with good health, it is also the color most often associated with toxicity and poison. There was a solid foundation for this association; in the nineteenth century several popul... | Why were popular paints and pigments in the nineteenth century highly toxic? | {
"text": [
"copper or arsenic"
],
"answer_start": [
432
]
} |
572a1f9d1d046914007797b1 | Green | Like other common colors, green has several completely opposite associations. While it is the color most associated by Europeans and Americans with good health, it is also the color most often associated with toxicity and poison. There was a solid foundation for this association; in the nineteenth century several popul... | What color is most associated with toxicity and poison? | {
"text": [
"green"
],
"answer_start": [
26
]
} |
572a203e3f37b31900478707 | Green | Many flags of the Islamic world are green, as the color is considered sacred in Islam (see below). The flag of Hamas, as well as the flag of Iran, is green, symbolizing their Islamist ideology. The 1977 flag of Libya consisted of a simple green field with no other characteristics. It was the only national flag in the w... | Which country had a flag in 1977 that was only green? | {
"text": [
"Libya"
],
"answer_start": [
211
]
} |
572a203e3f37b31900478708 | Green | Many flags of the Islamic world are green, as the color is considered sacred in Islam (see below). The flag of Hamas, as well as the flag of Iran, is green, symbolizing their Islamist ideology. The 1977 flag of Libya consisted of a simple green field with no other characteristics. It was the only national flag in the w... | What does the green in Jamaica's flag represent? | {
"text": [
"country's lush vegetation"
],
"answer_start": [
448
]
} |
572a203e3f37b31900478709 | Green | Many flags of the Islamic world are green, as the color is considered sacred in Islam (see below). The flag of Hamas, as well as the flag of Iran, is green, symbolizing their Islamist ideology. The 1977 flag of Libya consisted of a simple green field with no other characteristics. It was the only national flag in the w... | What does the green cedar of Lebanon tree represent on the Flag of Lebanon? | {
"text": [
"steadiness and tolerance"
],
"answer_start": [
644
]
} |
572a203e3f37b3190047870a | Green | Many flags of the Islamic world are green, as the color is considered sacred in Islam (see below). The flag of Hamas, as well as the flag of Iran, is green, symbolizing their Islamist ideology. The 1977 flag of Libya consisted of a simple green field with no other characteristics. It was the only national flag in the w... | Which color is considered sacred in Islam? | {
"text": [
"green"
],
"answer_start": [
36
]
} |
572a2278af94a219006aa837 | Green | In the 1980s green became the color of a number of new European political parties organized around an agenda of environmentalism. Green was chosen for its association with nature, health, and growth. The largest green party in Europe is Alliance '90/The Greens (German: Bündnis 90/Die Grünen) in Germany, which was forme... | What is the largest green party in Europe? | {
"text": [
"Alliance '90/The Greens"
],
"answer_start": [
237
]
} |
572a2278af94a219006aa838 | Green | In the 1980s green became the color of a number of new European political parties organized around an agenda of environmentalism. Green was chosen for its association with nature, health, and growth. The largest green party in Europe is Alliance '90/The Greens (German: Bündnis 90/Die Grünen) in Germany, which was forme... | Why was green chosen for a number of new European political parties in the 1980s? | {
"text": [
"environmentalism"
],
"answer_start": [
112
]
} |
572a2278af94a219006aa839 | Green | In the 1980s green became the color of a number of new European political parties organized around an agenda of environmentalism. Green was chosen for its association with nature, health, and growth. The largest green party in Europe is Alliance '90/The Greens (German: Bündnis 90/Die Grünen) in Germany, which was forme... | When was the German green party founded in West Germany? | {
"text": [
"1980"
],
"answer_start": [
400
]
} |
572a23651d046914007797d1 | Green | Roman Catholic and more traditional Protestant clergy wear green vestments at liturgical celebrations during Ordinary Time. In the Eastern Catholic Church, green is the color of Pentecost. Green is one of the Christmas colors as well, possibly dating back to pre-Christian times, when evergreens were worshiped for their... | What color vestments do Roman Catholic and traditional Protestant clergy wear at liturgical celebrations during Ordinary time? | {
"text": [
"green"
],
"answer_start": [
59
]
} |
572a23651d046914007797d2 | Green | Roman Catholic and more traditional Protestant clergy wear green vestments at liturgical celebrations during Ordinary Time. In the Eastern Catholic Church, green is the color of Pentecost. Green is one of the Christmas colors as well, possibly dating back to pre-Christian times, when evergreens were worshiped for their... | What is green the color of in the Eastern Catholic Church? | {
"text": [
"Pentecost"
],
"answer_start": [
178
]
} |
572a23651d046914007797d3 | Green | Roman Catholic and more traditional Protestant clergy wear green vestments at liturgical celebrations during Ordinary Time. In the Eastern Catholic Church, green is the color of Pentecost. Green is one of the Christmas colors as well, possibly dating back to pre-Christian times, when evergreens were worshiped for their... | What was worshipped for their ability to maintain their color through the winter season? | {
"text": [
"evergreens"
],
"answer_start": [
285
]
} |
572a23651d046914007797d4 | Green | Roman Catholic and more traditional Protestant clergy wear green vestments at liturgical celebrations during Ordinary Time. In the Eastern Catholic Church, green is the color of Pentecost. Green is one of the Christmas colors as well, possibly dating back to pre-Christian times, when evergreens were worshiped for their... | What did Romans use as decorations for their winter solstice celebration called Saturnalia? | {
"text": [
"green holly and evergreen"
],
"answer_start": [
392
]
} |
572a23651d046914007797d5 | Green | Roman Catholic and more traditional Protestant clergy wear green vestments at liturgical celebrations during Ordinary Time. In the Eastern Catholic Church, green is the color of Pentecost. Green is one of the Christmas colors as well, possibly dating back to pre-Christian times, when evergreens were worshiped for their... | What does green represent in Ireland and Scotland? | {
"text": [
"Catholics"
],
"answer_start": [
608
]
} |
57296e7e6aef051400154e84 | Zinc | Zinc is a chemical element with symbol Zn and atomic number 30. It is the first element of group 12 of the periodic table. In some respects zinc is chemically similar to magnesium: its ion is of similar size and its only common oxidation state is +2. Zinc is the 24th most abundant element in Earth's crust and has five ... | What is the symbol for Zinc? | {
"text": [
"Zn"
],
"answer_start": [
39
]
} |
57296e7e6aef051400154e85 | Zinc | Zinc is a chemical element with symbol Zn and atomic number 30. It is the first element of group 12 of the periodic table. In some respects zinc is chemically similar to magnesium: its ion is of similar size and its only common oxidation state is +2. Zinc is the 24th most abundant element in Earth's crust and has five ... | What is the atomic number for Zinc? | {
"text": [
"30"
],
"answer_start": [
60
]
} |
57296e7e6aef051400154e86 | Zinc | Zinc is a chemical element with symbol Zn and atomic number 30. It is the first element of group 12 of the periodic table. In some respects zinc is chemically similar to magnesium: its ion is of similar size and its only common oxidation state is +2. Zinc is the 24th most abundant element in Earth's crust and has five ... | What is zinc chemically close to? | {
"text": [
"magnesium"
],
"answer_start": [
170
]
} |
57296e7e6aef051400154e87 | Zinc | Zinc is a chemical element with symbol Zn and atomic number 30. It is the first element of group 12 of the periodic table. In some respects zinc is chemically similar to magnesium: its ion is of similar size and its only common oxidation state is +2. Zinc is the 24th most abundant element in Earth's crust and has five ... | What is the oxidation state for zinc? | {
"text": [
"+2"
],
"answer_start": [
247
]
} |
57296e7e6aef051400154e88 | Zinc | Zinc is a chemical element with symbol Zn and atomic number 30. It is the first element of group 12 of the periodic table. In some respects zinc is chemically similar to magnesium: its ion is of similar size and its only common oxidation state is +2. Zinc is the 24th most abundant element in Earth's crust and has five ... | How many stable isotopes does zinc have? | {
"text": [
"five"
],
"answer_start": [
315
]
} |
572b4999be1ee31400cb8301 | Zinc | Zinc is a chemical element with symbol Zn and atomic number 30. It is the first element of group 12 of the periodic table. In some respects zinc is chemically similar to magnesium: its ion is of similar size and its only common oxidation state is +2. Zinc is the 24th most abundant element in Earth's crust and has five ... | What is the symbol for zinc? | {
"text": [
"Zn"
],
"answer_start": [
39
]
} |
572b4999be1ee31400cb8302 | Zinc | Zinc is a chemical element with symbol Zn and atomic number 30. It is the first element of group 12 of the periodic table. In some respects zinc is chemically similar to magnesium: its ion is of similar size and its only common oxidation state is +2. Zinc is the 24th most abundant element in Earth's crust and has five ... | What is zinc's atomic number? | {
"text": [
"30"
],
"answer_start": [
60
]
} |
572b4999be1ee31400cb8303 | Zinc | Zinc is a chemical element with symbol Zn and atomic number 30. It is the first element of group 12 of the periodic table. In some respects zinc is chemically similar to magnesium: its ion is of similar size and its only common oxidation state is +2. Zinc is the 24th most abundant element in Earth's crust and has five ... | What other element on the periodic table is zinc similar to? | {
"text": [
"magnesium"
],
"answer_start": [
170
]
} |
572b4999be1ee31400cb8304 | Zinc | Zinc is a chemical element with symbol Zn and atomic number 30. It is the first element of group 12 of the periodic table. In some respects zinc is chemically similar to magnesium: its ion is of similar size and its only common oxidation state is +2. Zinc is the 24th most abundant element in Earth's crust and has five ... | What is the most common zinc ore? | {
"text": [
"sphalerite"
],
"answer_start": [
365
]
} |
572b4999be1ee31400cb8305 | Zinc | Zinc is a chemical element with symbol Zn and atomic number 30. It is the first element of group 12 of the periodic table. In some respects zinc is chemically similar to magnesium: its ion is of similar size and its only common oxidation state is +2. Zinc is the 24th most abundant element in Earth's crust and has five ... | What is used to extract zinc during the production process? | {
"text": [
"electricity"
],
"answer_start": [
587
]
} |
57296ef16aef051400154e98 | Zinc | Brass, which is an alloy of copper and zinc, has been used since at least the 10th century BC in Judea and by the 7th century BC in Ancient Greece. Zinc metal was not produced on a large scale until the 12th century in India and was unknown to Europe until the end of the 16th century. The mines of Rajasthan have given ... | What two metals are mixed to create Brass? | {
"text": [
"copper and zinc"
],
"answer_start": [
28
]
} |
57296ef16aef051400154e99 | Zinc | Brass, which is an alloy of copper and zinc, has been used since at least the 10th century BC in Judea and by the 7th century BC in Ancient Greece. Zinc metal was not produced on a large scale until the 12th century in India and was unknown to Europe until the end of the 16th century. The mines of Rajasthan have given ... | When was brass first used? | {
"text": [
"10th"
],
"answer_start": [
78
]
} |
57296ef16aef051400154e9a | Zinc | Brass, which is an alloy of copper and zinc, has been used since at least the 10th century BC in Judea and by the 7th century BC in Ancient Greece. Zinc metal was not produced on a large scale until the 12th century in India and was unknown to Europe until the end of the 16th century. The mines of Rajasthan have given ... | Where was zinc first produced on a large scale? | {
"text": [
"India"
],
"answer_start": [
219
]
} |
57296ef16aef051400154e9b | Zinc | Brass, which is an alloy of copper and zinc, has been used since at least the 10th century BC in Judea and by the 7th century BC in Ancient Greece. Zinc metal was not produced on a large scale until the 12th century in India and was unknown to Europe until the end of the 16th century. The mines of Rajasthan have given ... | When was zinc introduced to Europe? | {
"text": [
"end of the 16th century"
],
"answer_start": [
261
]
} |
57296ef16aef051400154e9c | Zinc | Brass, which is an alloy of copper and zinc, has been used since at least the 10th century BC in Judea and by the 7th century BC in Ancient Greece. Zinc metal was not produced on a large scale until the 12th century in India and was unknown to Europe until the end of the 16th century. The mines of Rajasthan have given ... | Where is the oldest evidence of pure zinc? | {
"text": [
"Zawar"
],
"answer_start": [
444
]
} |
572b4ab5111d821400f38e24 | Zinc | Brass, which is an alloy of copper and zinc, has been used since at least the 10th century BC in Judea and by the 7th century BC in Ancient Greece. Zinc metal was not produced on a large scale until the 12th century in India and was unknown to Europe until the end of the 16th century. The mines of Rajasthan have given ... | Brass is an alloy of what two elements? | {
"text": [
"copper and zinc"
],
"answer_start": [
28
]
} |
572b4ab5111d821400f38e25 | Zinc | Brass, which is an alloy of copper and zinc, has been used since at least the 10th century BC in Judea and by the 7th century BC in Ancient Greece. Zinc metal was not produced on a large scale until the 12th century in India and was unknown to Europe until the end of the 16th century. The mines of Rajasthan have given ... | The earliest uses of brass has been attributed to what ancient location? | {
"text": [
"Judea"
],
"answer_start": [
97
]
} |
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