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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.
Yes it does because it messes up with the circle of all living things and they transfer seeds to places with causes less vegetation in the surrounding area
Days is that the earth spins fully on its axis. Years is the orbit around the sun.
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oh my yikes, thats tuff..
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