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The Moon probably formed at the same time that Earth formed,rather like the formation of a double planet.
Q43: Why is Neptune denser than Saturn?<br>A)It has
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Q63: Division of the EM Spectrum: The electromagnetic
Q79: Which of the following statements about thermal
Q82: Which of the following statements about the
Q82: Jupiter is the only Jovian planet with
Q131: The Sun is gradually increasing in luminosity
Q136: Which of the following most likely explains
Q147: Suppose we use a baseball to represent
Q191: Without greenhouse gases, Earth's surface would be