Earth

What are minerals found in high quantities and worth mining called?

More Questions from Earth
Where is the type location for the Mississippian Period?
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A weather proverb says "A year of snow," followed by what?
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What front results when a cold front takes the area of a warm front?
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What imaginary line divides the Earth's northern and southern hemispheres?
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A 286-mph tornado ripped through what U.S. state?
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What makes Florida's Tampa Bay a unique aquatic environment?
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To which island group do Kwajalein and Eniwetok belong?
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What is the transport of top layers of soil to another place called?
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