... percent. Another way to see the Gaian Theory in effect is in, like stated earlier, the atmosphere of the earth. The earth's atmosphere consist of 79% nitrogen, 20.7% oxygen, .03% carbon dioxide with other gases such as methane. These gases are maintained that these percentages because of the living organisms on maintaing the homeostatis by using cycles found in our Earth. The ... oxygen cycles is a simple cycle which consists of plants and animals breathing. Animals breathe in the oxygen from the atmosphere to live and breathe out carbon dioxide into the atmosphere during the process of...

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