Science
What is the sticky bacteria that forms on teeth and gums?
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What vascular plants do not have seed-bearing flowers or fruits?
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Awarded the Nobel Prize in 1977, John H. Van Vleck's area of expertise is in what?
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What is the generic term for very small loose particles of hard, broken rock or minerals?
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At which angle should a cannon be aimed to maximize distance?
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What is the irregular and instantaneous motion of air called?
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What does one call a smaller stream that parallels a larger stream and finally enters the larger stream?
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