Describe in brief the bio-geo-chemical cycles in nature-carbon cycle
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The carbon cycle is the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth. Carbon is the main component of biological compounds as well as a major component of many minerals such as limestone.
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Energy flows through an ecosystem and is dissipated as heat, but chemical elements are recycled.
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