The Principle Events in the Evolution of the Earth's Atmosphere The literal translation of the word atmosphere is "sphere of vapors". The Earth's atmosphere is a protective sphere of vapors, or air that surrounds the Earth and provides it with a layer of insulation from the harmful rays of the sun. It is a vital part of the Earth, and has changed dramatically since the beginning of time. The earth's atmosphere has gradually changed since …
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showed last 75 words of 658 total
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