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Help with astronomy question

Science
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The inner planets are primarily of rock and metal because A)The sun’s gravity heavy materials, and pulled center of the solar system.B) The angular momentum of solar nebula flung light elements outward.C) sun it hot but rock, metal to condense.d none

Nov 30th, 2014

The answer is B.  As the sun originally began to shine and solar winds formed, the solar winds blew lighter, more gaseous elements outwards to form the outer planets and left heavier elements such as rock and metal at the inner ring of the solar system to form the inner planets. 

Nov 30th, 2014

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