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.
salad 2014-04-19 06:41:03 |
not correct the earth's core was formed from a large meteorite
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Julia 2014-03-10 18:43:26 |
The program is great!
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Anonymous 2014-03-10 18:41:12 |
Why are there so few?
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Pochemuchka 2014-01-27 18:35:39 |
Come for Arxe
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Igor 2014-01-20 20:28:31 |
well, as always I dz 12 hurray!!site class!! all advise free HD!!
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Diana grade 5 2014-01-08 16:14:07 |
THIS POST IS VERY INSTRUCTIVE AND FUNNY.
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Nastya 2014-01-07 15:02:44 |
very cool site but little:)
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Neznakomka 2013-12-13 21:22:53 |
what you need in geography
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pront 2013-11-19 16:12:36 |
normalno will think the science Doklady
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Dasha 2013-11-13 19:26:38 |
For dz nature studies that have
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