Earth
Ruby and sapphire are gem forms of which mineral?
More Questions from Earth
What is sedimentary rock composed primarily of sand-sized grains?
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At what point would one be standing if the trees were stunted?
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What are the broken-off pieces of glaciers that make it to the open sea called?
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Most minerals may be identified using the following methods except which?
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What chamber do divers go into to prevent a diving sickness called "the bends"?
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What product of burning fossil fuels can cause death by preventing oxygen from getting to cells?
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