Science
What university did astronomy and space science theorist Carl Sagan teach at?
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Which star is the brightest star in the northern sky at night?
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What is the scientific term for the cells responsible for root growth?
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What is the opening of a lens, which controls the amount of light?
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What is the smallest possible electricity within an atom called?
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The definition of "highest instantaneous wind speed observed or recorded" best fits which science term?
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What is a steep-sided circular depression commonly known as?
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