Earth
Which of these pairs of elements was discovered before the 14th century?
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What type of glacier is Greenland or Antarctica called?
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What plant's gel is often used in lotions and sunblocks?
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Which pairs of minerals are almost always found together?
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Which of the following lakes has a higher salt content than normal?
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Which of the following describes a period of abnormally dry weather for a specific area?
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Who published the groundbreaking book "Principles of Geology" in 1830?
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What molecules in fossil fuels are made from carbon and hydrogen?
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