Question

Why does the percentage of gases like oxygen, nitrogen and carbon dioxide remain almost the same in the atmosphere?

Answer 1

• In the environment, the percentage of the gases like oxygen, nitrogen and carbon dioxide is maintained by their cyclic flow. The oxygen cycle, nitrogen cycle and carbon cycle respectively are operated by the constant interaction between the biotic and abiotic components of the biosphere.
• This interaction includes the transfer of nutrient and energy between the different components of the biosphere.
• Thus, the levels of oxygen, nitrogen and carbon dioxide in the atmosphere are maintained constantly up to a required limit.