Science
What do our bodies need from the air we breathe?
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Who was the first woman to win the Iditarod sled dog race?
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The four engines of a Boeing 747 jet produce 188,000 pounds (85,275 kilograms) of what?
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The physicist Marie Curie was awarded the Nobel Prize in which year?
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The modern equivalent of Aristotle's polis is an independent unit called what?
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What fuels were formed from the decayed remains of plants and animals?
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What cellular structure found in the nucleus helps in protein formation?
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