Earth
Ruby and sapphire are gem forms of which mineral?
More Questions from Earth
Which of the world's oceans is larger than all of the Earth's land area combined?
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What is the most common element in Earth's atmosphere?
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Which mineral is not likely to be a replacement mineral in fossils?
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The definition of "subjective term for warm and excessively humid weather" best fits which science term?
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What produces more energy than all the world's nuclear weapons combined?
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What instrument measures water vapor in the atmosphere?
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