What is the primary reason that the jovian planets contain so much more volatile liquid and gaseous material than the terrestrial planets?

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    They melted after solar system formation, releasing stored gases in the rocks.
     They formed at higher temperatures than the terrestrial planets.
     They accumulated at sufficiently great orbital distances that these volatile materials were ices and liquids.
     They were deposited into the solar system by passing comets after the solar system had already formed.
     They formed much more slowly, after the terrestrial planets already had a chance to form.
asked Sep 20, 2012 in Astronomy by anonymous
    

1 Answer

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They accumulated at sufficiently great orbital distances that these volatile materials were ices and liquids.
answered Sep 22, 2012 by SkyStar ~Expert~ (2,855 points)

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