Earth
78% of the earth's atmosphere is composed of which gas?
More Questions from Earth
Rapidly descending air beneath a thunderstorm is what?
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In the United States, summer officially begins in which month?
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What permanent snowcap is within sight of the equator?
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Galileo was a 17th century astronomer famous for discovering that the Earth did what?
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What rock was used for navigation by the ancient Chinese people?
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What is a comparison of air water vapor to amounts of vapor at a given temperature called?
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