The cyclical flow of nutrients within an ecosystem is called the bio-geo-chemical cycle.
There are various bio-gio-chemical cycles operating in the ecosystem. They are the oxygen, carbon, nitrogen, water, iron, calcium, phosphorous, etc.
These cycles operate continuously through the medium of the biosphere formed by the lithosphere, atmosphere and hydrosphere.
Nutrients and energy, necessary for the growth of the organisms are continuously transferred from abiotic to biotic factors and biotic to abiotic factors within an ecosystem.
These cycles help in maintaining the equilibrium in an ecosystem. Thus are very important.
