Science
Who discovered the supernova and was the first to theorize that stars "die"?
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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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Which is not one of the four schools of family therapy?
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When a dog repeats a learned behavior and gets a reward, what process is shown?
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How far does a car moving at 60 miles per hour cover in one second?
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What is a dark area that light does not reach called?
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What planet in our solar system has the most liquid water on its surface?
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