Earth

What is the very bottom soil horizon called?

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What do we call the dependable winds that rush toward the equator from the north and south?
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What chamber do divers go into to prevent a diving sickness called "the bends"?
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What was the name of the volcano that used to be Crater Lake?
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What is the only continent on Earth that does not have snakes?
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What is the term for when pieces of glaciers break off and form icebergs?
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Which tree can grow the tallest?
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What is the test that can help determine the hardness of a rock called?
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The Hawaiian Islands are a good example of which type of volcano?
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