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Earth
Which of the following minerals is the hardest?
Earth
Which of the following minerals is the hardest?
Corundum
Tourmaline
Calcite
Halite
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Every second, 100,000 cubic feet of water pours over what?
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What type of boundary is displayed at the Mid-Atlantic Ridge?
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From what perspective does a map shows what the earth looks like?
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Which of the following is a renewable resource?
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Which of these islands is not considered a "hot spot", according to plate tectonic theory?
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What is the low pressure area along the equator called?
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What does the term "geocentric" mean?
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John Glenn first orbited the earth in what year?
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