Earth

How old is the earth?

More Questions from Earth
Thunderstorms form on what "lines"?
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What is it called when a plant produces two kinds of sex cells?
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Hot, hazy weather mixed with pollution leads to what?
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What is a diamond an example of?
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What's the name for the weight of air pushing down on Earth's surface?
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How many times does lightning strike the Earth every second?
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What is the theory that describes how the continents got where they are today?
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What is the driest U.S. state?
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