Carbon cycle

Definition (http://en.wikipedia.org/wiki/Carbon_cycle)

The carbon cycle is the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth. Along with the nitrogen cycle and the water cycle, the carbon cycle comprises a sequence of events that are key to making the Earth capable of sustaining life; it describes the movement of carbon as it is recycled and reused throughout the biosphere. (Wikipedia)

Preferred Units: N/A

Scope Note:
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This term is used for the following terms: 
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Approved Date
06-Nov-2012

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