Science
What electronic device only allows current to flow in one direction?
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What type of lens has a thin middle and makes objects appear smaller?
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How many years does it take for Mars to go around the Sun for a complete revolution in its orbit?
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What liquid is used as a standard when measuring density?
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The physicist Marie Curie was awarded the Nobel Prize in which year?
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What specifically is a bezoar called those results from persimmon ingestion?
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How many tiles make up the outer "skin" of Spaceship Earth, in EPCOT?
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