Science
Where is the observatory where Percival Lowell first theorized the existence of Pluto?
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What type of cell doesn't have membrane around its nuclear material?
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How many tiles make up the outer "skin" of Spaceship Earth, in EPCOT?
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About how many days does it take for the moon to pass through all phases?
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12.36 Microseconds is the equivalent to one unit of what?
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Which characteristics do organisms use to help them survive in their environment?
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Which scientist died the same year Sir Isaac Newton was born?
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Scott and Worden were crewmembers on which Apollo mission?
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