Earth

Which is heavier, cold air or warm air?

More Questions from Earth
What is the name for the semiarid region that surrounds most deserts?
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Which is NOT a type of drainage pattern?
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What kind of tides are influenced by the moon and sun?
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What instrument measures water vapor in the atmosphere?
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What instrument measures altitude?
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What might you find on the grass after a cool summer night?
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What is in the sky if it is overcast?
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What famed rock is 1396 feet high, 2.75 miles long, and .25 miles wide?
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