Earth

What is the test that can help determine the hardness of a rock called?

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What is the energy released from the sun called?
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From what type of storm does a hurricane form?
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Where are tropical zones located on the Earth?
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What is the solid form of water?
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To which island group do Kwajalein and Eniwetok belong?
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Which of these is a spiral storm that can be many miles wide?
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What is the process that removes salt from sea water?
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What kind of scientist would study rocks, minerals and mountains?
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