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AEROBIC

A process that takes place in the presence of oxygen, such as the digestion of organic matter by bacteria in an oxidation pond. As organic substances diminish when exposed to oxygen, the process of aerobic takes place. The aerobic process depends on the using tons of energy and is one of the common occurrences throughout nature. One example of aerobic is when ground areas that have manure from animals and trees are reformed into a approximately balanced humus.