Earth

What is the hard, dark substance found in the ground that is mined for fuel?

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What mountains separate Europe from Asia?
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Where is the type location for the Mississippian Period?
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What region surrounds the North Pole?
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Which of these bodies of water would it be easiest to float and swim in?
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According to tradition, what insect in the town of Vermilion predicts the winter weather?
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What is the highest mountain, considering just the contiguous United States?
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Which of these is the first step in the making of a fossil?
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What is a scientist who specializes in soil and crops called?
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