Hello,

Global carbon cycle refers to the exchanges of carbon within and between four major reservoirs, the atmosphere, the ocean, land and fossil fuels. Its mainly explain by the movement of carbon between the earth biosphere, geosphere, hydrosphere and atmosphere. Carbon atoms are released as carbon dioxide when organism respire.  Carbon cycle have 5 steps they are photosynthesis, decomposition, respiration, combustion. The global carbon cycle is important to our ecosystem because it's move carbon, a life sustaining element.

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