Science

How many years are in a sunspot cycle?

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Which planet does the moon Deimos belong to?
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Which of these best describes how light travels?
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What protects our Earth from harmful rays?
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What body process helps keep you cool?
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A "philatelist" is a what?
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Who discovered the supernova and was the first to theorize that stars "die"?
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How many times more does Jupiter radiate energy than what it receives from the sun?
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What type of reproduction uses only one parent cell?
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