Earth
What mineral makes both sapphires and rubies when cut and polished?
More Questions from Earth
What is the name of any body of igneous rock named for the Roman god of the underworld?
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In what modern-day country did the dog called the Rhodesian Ridgeback originate?
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Which is the process of placing plants in a certain way in an area?
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What are the traces of animals and plants left in rocks called?
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What is the name of a glacier that is formed when two or more valley glaciers flow together?
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