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Definition of Biogeochemical cycle

Biogeochemical cycle Definition from Society & Culture Dictionaries & Glossaries
EPA Glossary of Climate Change Terms
Natural processes that recycle nutrients in various chemical forms from the environment, to organisms, and then back to the environment. Examples are the carbon, oxygen, nitrogen, phosphorus, and hydrologic cycles.
Provided as a public service by the U.S. Environmental Protection Agency. Reference list click here.
Biogeochemical cycle Definition from Encyclopedia Dictionaries & Glossaries
Wikipedia English - The Free Encyclopedia
In  Earth science, a biogeochemical cycle or substance turnover or cycling of substances is a pathway by which a chemical substance moves through both biotic (biosphere) and abiotic (lithosphere, atmosphere, and hydrosphere) compartments of Earth. A cycle is a series of change which comes back to the starting point and which can be repeated.

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