. Natural reservoir of phosphorus is

Best Answer

Explanation:

Phosphorus is very important for the growth of plants and animals.

The chief reservoir of phosphorus is rock. 

It is obtained by the weathering of the rocks. 

The phosphorus enters into the biosphere, lithosphere and hydrosphere by phosphorus cycle.

Calcium along with phosphorus helps in formation of bone cells.

Fossils and seawater are the reservoir of carbon.

Final answer:

The correct answer is rock, i.e option (B).