Question

State any two differences between Phosphorus and carbon cycle in nature.

Answer 1

Hint:The amount of nutrients such as carbon, nitrogen, phosphorus, calcium etc. Present in the soil at a given time is referred to as the standing state.

Complete answer:A. Carbon cycle-
Carbon is a gaseous cycle. In which gas plays a significant role.
Fossil fuel represents a reserve of carbon. Carbon cycling occurs through the atmosphere, ocean, and living and dead organisms.
Most of the carbon is fixed through photosynthesis annually. A considerable amount of carbon atoms return to the atmosphere as ${CO_2}$ through respirator activities of the producers and consumers. Decomposers also contribute to the ${CO_2}$ pool by their processing of waste materials and dead organic matter.
B. Phosphorus cycle-
It is a sedimentary cycle in which the atmosphere or gases have no role. The natural reservoir of phosphorus is a rock that contains Phosphorus in the form of phosphates.
When rocks are weathered a minute amount of this phosphate dissolves in salt solution and absorbed by the roots of the plants. Animals obtain this element from plants. The dead organisms are decomposed by phosphate solubilizing bacteria releasing phosphorus.

Additional information:
1. 71% carbon is found dissolved in the ocean .
2. Human activities significantly increased or influenced the carbon cycle.
3. Rapid deforestation in the massive burning of fossil fuel for energy and transport have significantly increased the rate of release of carbon dioxide in the atmosphere.
4. Phosphorus is present in biological membranes, nucleic acid, and cellular energy transfer systems.

Note:Main difference between the carbon and phosphorus cycle is atmospheric inputs of phosphorus are less than of carbon and gaseous exchange of phosphorus is negligible.