Определите основную идею текста
Any living matter is involved in the biogeochemical cycle either directly or indirectly.
Various forms of living elements tend to move from abiotic to biotic components of the biosphere and back to abiotic again.
Gaseous cycles include atmospheric reservoir, sedimentary cycles include reservoir from earthbound elements.
Natural circulation of the elements of living matter provides the survival of natural ecosystems and can be classified as gaseous and sedimentary.