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How did our planet?

Our planet was formed about 5 billion years ago from a dense clouds of cosmic dust and gases, which scientists have named Protozilla. At first it was a cold lifeless concentration of cosmic matter. Gradually, under the influence of solar attraction, from impacts of cosmic bodies and due to radioactive decay of Protozilla began to heat up. Primary substance became so hot that it melts, and in the light of the compounds remained on the surface, and the heavier elements and compounds sank into the Ground. Next was the division of the earth's interior on the core and the mantle.

 


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Total votes: 772

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salad
2014-04-19 06:41:03
not correct the earth's core was formed from a large meteorite
Julia
2014-03-10 18:43:26
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Anonymous
2014-03-10 18:41:12
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Pochemuchka
2014-01-27 18:35:39
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Igor
2014-01-20 20:28:31
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Diana grade 5
2014-01-08 16:14:07
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Nastya
2014-01-07 15:02:44
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Neznakomka
2013-12-13 21:22:53
what you need in geography
pront
2013-11-19 16:12:36
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Dasha
2013-11-13 19:26:38
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