...and much less land, however once plants emerged from the ocean, they began to convert the Nitrogen from the air into cellulose, and as the dead plant matter mixed with the rock, eventually soil was created, which in turn allowed for more and more plant life to thrive. Later, amphibians along with the excrement of other land animals, added to the life-giving properties in the soil.
However, in a few hundred million, or perhaps a billion years, the soil will begin to overtake the water (H20), which is subject to being converted along with the Nitrogen in the air, into more & more solid matter. Eventually, the remaining water will begin to evaporate and dissipate, and the earth will resemble Mars, which appears to have once had oceans of water, and quite possibly life, but no longer...
Is this scenario, chemically, geologically and biologically possible, probable, or not?
2007-11-02
13:18:09
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4 answers
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asked by
Anonymous
in
Science & Mathematics
➔ Earth Sciences & Geology
Pangea was only 300-400 million years ago, I'm talking about 3-4 Billion years ago...
2007-11-02
14:55:47 ·
update #1