Earth
Ruby and sapphire are gem forms of which mineral?
More Questions from Earth
Which type of irrigation is most commonly used throughout the world?
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Snow particles that have blown into a pile are said to form what?
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Which of the following does not form mineral crystals?
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Although beaches can be comprised of any particle, the majority of them consist of what?
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From where does 90% of the water vapor in the air come?
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What periods of the Earth's history had glaciers covering a lot of the Earth?
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