Question

Give a brief note on different bio-geochemical cycles

Answer 1

A biogeochemical cycle is a repeatable pathway by which either the chemical element or a molecule moves through both biotic and abiotic components. They include the following cycles -

Oxygen cycle- It is the exchange of oxygen in the atmosphere, biosphere, hydrosphere and lithosphere

Carbon cycle - It is the exchange of carbon dioxide with the biosphere, atmosphere, lithosphere etc.

Nitrogen cycle- It this cycle nitrogen is converted into many forms and circulates in the ecosystem.

Water cycle - This cycle describes the continuous flow of water above and below the earth. It is also known as the hydrologic cycle.