Earth
Ruby and sapphire are gem forms of which mineral?
More Questions from Earth
One needs to travel to which state in New England to see the highest tides?
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What is the name of the limestone formation that rises from a cave floor?
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In a "drought", what is absent in terms of weather?
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What is the sediment left behind after a glacier moves through an area called?
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Yosemite National Park is an easily recognizable part of what batholiths?
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What was the nationality of the scientist who demonstrated a heliocentric system?
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What is the process that removes salt from sea water?
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