Question
Biology Question on Eco-System
Which of the following pairs is a sedimentary type of biogeochemical cycle?
A
phosphorus and nitrogen
B
phosphorus and sulphur
C
oxygen and nitrogen
D
phosphorus and carbon dioxide.
Answer
phosphorus and sulphur
Explanation
Solution
The term biogeochemical cycling is used for exchanges/circulation of biogeochemical nutrients between living and nonliving components of biosphere. In sedimentary cycle of matter, materials involved in circulation between biotic and abiotic components of biosphere are nongaseous and the reservoir pool is lithosphere, e.g., phosphorus, calcium, magnesium. Sulphur has both sedimentary and gaseous phase. 02, N2 and CO2 do not have sedimentary phase but are gaseous cycle.