Science

What scientist discovered that sunspots occur in an eleven-year cycle?

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If a jet cruises at 575 mph, how far will it go in 12 hours?
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Which is the ability to maintain steady conditions internally?
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What branching nerve fibers receive messages?
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What is matter that doesn't allow light to pass through called?
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What is any picture of an object made with a mirror or lens called?
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Which of the following items has the most mass?
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What are the 4 stages of metamorphosis in insects?
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Orange juice is a good source of which vitamin?
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