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Home Q & A Board Science-Related Homework Help Physics
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staedtler staedtler
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7 years ago
The reason why the inner planets are mostly rock and iron and the outer planets are mostly lighter material like hydrogen and ices is that

(a)   the inner solar system was warm enough that the lighter material vaporized (or never solidified), leaving rock and iron to form the inner planets.
(b)   rock and iron are heavy and sank towards the center of the solar system.
(c)   rotation in the solar nebula flung the lighter materials into the outer solar system, leaving the heavier rock and iron to form the inner planets.
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Discovering the Universe

Discovering the Universe


Edition: 7th
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hyponoticahyponotica
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staedtler Author
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7 years ago
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