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en.wikipedia.org/wiki/Biogeochemical_cycle

In Earth science, a biogeochemical cycle or substance turnover or cycling of substances is a pathway by which a chemical substance moves through both the  ...

www.yourarticlelibrary.com/environment/ecosystem/4-common-biogeochemical-cycles-explained-with-diagram/28229

Some of the major biogeochemical cycles are as follows: (1) Water Cycle or Hydrologic Cycle (2) Carbon-Cycle (3) Nitrogen Cycle (4) Oxygen Cycle.

www.reference.com/science/four-biogeochemical-cycles-5ecc4d7f783824ba

The four biogeochemical cycles include the water cycle, the carbon cycle, the phosphorous cycle and the nitrogen cycle. These four cycles involve biology, ...

www.dummies.com/education/science/discovering-the-biogeochemical-cycles

... and the process by which organic matter returns to the chemical elements in the earth is explained by the chemical part. There are four biogeochemical cycles , ...

ci.coastal.edu/~sgilman/778BioChemCycles.htm

A biochemical cycle is the transport and transformation of chemicals in ... and is one of the major ways that high molecular weight (big) carbohydrates are broken  ...

www.newworldencyclopedia.org/entry/Biogeochemical_cycle

In ecology, a biogeochemical cycle is a circuit or pathway by which a chemical element or .... The cycle is usually discussed as four main reservoirs of carbon ...

www.tutorvista.com/content/biology/biology-iv/ecosystem/biogeochemical-cycles-types.php

Biogeochemical cycles are basically of two types: ... Some of the major biogeochemical cycles in nature are carbon cycle, nitrogen cycle, oxygen cycle, water ...

en.wikibooks.org/wiki/Ecology/Biogeochemical_cycles

Nutrients move through the ecosystem in biogeochemical cycles. ..... and small organisms like plankton that store carbon dioxide are major sources in the ocean.

www.colorado.edu/GeolSci/courses/GEOL1070/chap04/chapter4.html

Biogeochemical cycles: the movement (or cycling) of matter through a .... Time scale for this cycle is millions to hundreds of millions of years, so not a major ...

www.britannica.com/science/biogeochemical-cycle

Elements within biogeochemical cycles flow in various forms from the nonliving ... In order for the living components of a major ecosystem (e.g., a lake or a forest) ...