The Principle Events in the Evolution of the Earth The Principle Events in the Evolution of the Earths Atmo scope The literal translation of the word profligate is vault of heaven of vapors. The Earths atmosphere is a protective sphere of vapors, or air that surrounds the Earth and provides it with a layer of judicial separation 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 earths atmosphere has gradually changed since the Earths birth approximately 4.6 million eld ago. In the beginning, the Earths composition was very different that how it exists today.
A pine time ago the Earths atmosphere was very similar to todays genus genus Venus and Mars atmosphere. It had about 95% carbon dioxide, 2-3% nitrogen, and very little, less than 1% oxygen. Today the Earth contains 79% nitrogen, 21% oxygen, and 3% piddle supply vapor. It is evident that there were many events that happened over billions of old age that accommodate contribute...If you want to get a full essay, format it on our website:
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