Science
Who discovered the supernova and was the first to theorize that stars "die"?
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How often does sunspot activity reach its lowest point?
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Who discovered that a moving magnet generates electric current known as electromagnetic induction?
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What is the ripened ovary of a plant containing the seeds?
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Which scientific term is best defined as an electrically charged atom?
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What fuels were formed from the decayed remains of plants and animals?
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What is it called when the Earth, Sun and Moon lie in a straight-line configuration?
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