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Pluto's atmosphere does not change significantly during the course of its year.
Q20: A sunbather on the clear day is
Q27: Which of these is NOT typical of
Q33: Carbonaceous meteorites contain organic molecules, even amino
Q81: What are Saturn's rings?<br>A)a great disk of
Q86: The form of electromagnetic radiation least blocked
Q88: The Mars Rovers found undisputed microfossils, proving
Q90: When it was determined that Sedna has
Q96: The Perseid meteor shower gives us about
Q102: Triton shows similar cratering to the Lunar
Q117: Sunspots:<br>A)are always found close to the Sun's