Science
How long, in kilometers, is the average single thread unwound from a silkworm cocoon?
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The modern equivalent of Aristotle's polis is an independent unit called what?
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Ian Shelton, who discovered Supernova 1987A, while observing in Chile, was working for what university?
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The obscuring from sight of one celestial body by another is also by what scientific term?
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What is the speed of the solar system around the center of the galaxy?
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What is the 6th planet from the sun in our solar system?
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