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Mars's atmosphere is mostly composed of carbon dioxide,therefore the greenhouse effect makes the average temperature 35 degrees warmer than it would be without its atmosphere.
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Q39: What makes the equinoxes and solstices special?
Q43: At the center of the Sun,the temperature
Q43: Which of the following is NOT a
Q48: The solar neutrino problem was solved by:<br>A)
Q73: The apparent path of the Sun across