process by which a chemical, such as carbon, moves between the living (plants) and non-living (atmosphere) parts of Earth.

The transformation and transport of substances within and among the atmosphere, biosphere, hydrosphere, and lithosphere via biological, geological, and chemical processes that are often cyclical in na [..]

Movements through the Earth system of key chemical constituents essential to life, such as carbon, nitrogen, oxygen, and phosphorus. [3]

The chemical interactionsand transport within and among the atmosphere, biosphere, hydrosphere and lithosphere (rocks).

The chemical interactions among the atmosphere, biosphere, hydrosphere, and lithosphere.

A natural process or cycles of compounds or atoms in the environment that are affected by living organisms. Examples included carbon, oxygen, water, and nutrients such as nitrogen and phosphorus.

The chemical interactions that take place among the atmosphere, biosphere, hydrosphere, and geosphere.

The transformation and transport of substances within and among the atmosphere, biosphere, hydrosphere, and lithosphere via biological, geological, and chemical processes that are often cyclic in natu [..]

the circulation of substances through living organisms from or to the environment

a circuit or pathway by which a chemical element or molecule moves through both biotic ("bio-") and abiotic ("geo-") parts of an ecosystem.