Science
Who discovered the supernova and was the first to theorize that stars "die"?
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What are solid particles that produce color by absorbing or reflecting light called?
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What are the loosely packed cells just inside the upper epidermis called?
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What is the maximum number of electrons possible in the 6th energy level?
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What kind of radiation can be described as infrared?
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What is the female reproductive cell of flowering plants?
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Which kind of tree is most often struck by lightning?
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What organelle packages and helps in secretion of substances within the cell?
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