What are bio geochemical cycles?

Biogeochemical cycles refer to the natural processes that recycle nutrients and elements through biological, geological, and chemical pathways in ecosystems. These cycles involve the movement of substances like carbon, nitrogen, phosphorus, and water between living organisms and the environment. They are essential for maintaining ecosystem health and supporting life by regulating the availability of vital nutrients. Key cycles include the carbon cycle, nitrogen cycle, and water cycle, each playing a crucial role in sustaining Earth's biological processes.