What are biogeochemical cycles ? Mention their two kinds, giving instances of each.

Explanation

The movement of nutrient elements through the living and the nonliving components of the biosphere, or of any particular ecosystem, is called biogeochemical cycle.
Two types of biogeochemical cycles are : (a) Gaseous cycles (e.g., oxygen cycle, carbon cycle, nitrogen cycle, water cycle). (b) Sedimentary cycles (e.g., phosphorus cycle, sulphur cycle, calcium cycle, potassium cycle)