Science
What is the repeated sound when sound waves bounce off other objects called?
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Which planet has a great red spot that is probably a large storm?
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What is the speed of the solar system around the center of the galaxy?
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Where is the observatory where Percival Lowell first theorized the existence of Pluto?
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What is the central set of female reproductive organs in a flower?
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Sudden, transient motion or trembling of the earth's crust best fits which science term?
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