miguel454545
23.06.2019 •
Biology
In what parts of the world does cheetahs currently reside
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Ответ:
Ответ:
Scientists believe that the Earth was formed about 4.5 billion years ago. Its early atmosphere was probably formed from the gases given out by volcanoes. ... The early atmosphere was probably mostly carbon dioxide, with little or no oxygen. There were smaller proportions of water vapour, ammonia and methane.