Biogeochemical cycle || Oxygen cycle || Hydrogen cycle || Nitrogen cycle

The Oxygen Cycle

Nitrogen Cycle || Water Cycle

Biogeochemical Cycle|Water Cycle|Oxygen Cycle|Carbon Cycle

Biogeochemical cycling means

Biogeochemical cycling means cycling of:

Biogeochemical cycles are also called

Describe nitrogen cycle.

Select the pairs of sediamentary biogeochemical cycles. I. Hydrogen cycle and water cycle II. Phosphorus cycle and sulphur cycle III. Calcium cycle and magnesium cycle IV. Carbon cycle and nitrogen cycle