Science
What is the opening of a lens, which controls the amount of light?
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What is the potential energy in the nucleus of an atom called?
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What fuels were formed from the decayed remains of plants and animals?
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What is the central set of female reproductive organs in a flower?
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Who discovered that a moving magnet generates electric current known as electromagnetic induction?
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First appearance of light in the eastern sky before sunrise best fits which term?
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