Science
In which constellation was the first double star observed?
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The four engines of a Boeing 747 jet produce 188,000 pounds (85,275 kilograms) of what?
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What is energy from the internal heat of the Earth called?
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Who discovered the supernova and was the first to theorize that stars "die"?
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Which of these scientific terms is defined as the solid surface layer of a planet or moon?
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Which of the following people is not recognized as developing family therapy?
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What process produces a duplicate of the original cell?
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