Science
What scientist discovered that sunspots occur in an eleven-year cycle?
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In which of the following animals does the male give birth to the young?
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The term, "black hole", was named by American physicist, John Wheeler, in which year?
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Energy return of a radar signal after it has hit the target best fits which science term?
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Which scientific term means "measure of resistance to flow in a liquid"?
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On which college campus would you find the Hatter Planetarium?
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