Answer:
When a chemical moves from an organism to the atmosphere then back to an organism.
Explanation:
If we look at it closely, geology and chemistry play major roles in the process of movement and recycling of inorganic matter between living organisms and their environment. This has been called the biogeochemical cycle.
Biogeochemical cycles involve movement of chemical elements among the biotic and abiotic components of the environment; from atmosphere to land to sea, and from soils to plants.
