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biogeochemical cycle

The definition of a biogeochemical-cycle is the flow of chemical elements between living organisms and the environment.

(noun)

An example of the biogeochemical-cycle is when inorganic elements such as nitrogen and carbon are taken in by organisms and then converted into organic substances of plants or animals and released back into the environment.

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See biogeochemical cycle in Webster's New World College Dictionary

the cycle in which nitrogen, carbon, and other inorganic elements of the soil, atmosphere, etc. of a region are converted into the organic substances of animals or plants and released back into the environment

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