Does nitrogen in the air follow a cyclic pattern and why?

Answer 1

Nitrogen in the air does not follow a cyclic pattern in the same way that some other elements do in biogeochemical cycles, like carbon or water. Instead, nitrogen primarily exists in the atmosphere as dinitrogen gas (N₂), which is relatively inert and does not participate in significant cycles directly in the atmosphere. However, nitrogen does enter and exit the ecosystem through processes like nitrogen fixation, nitrification, and denitrification, contributing to the nitrogen cycle within soil and living organisms. Thus, while atmospheric nitrogen is stable, it is part of a broader nitrogen cycle that includes various transformations and biological interactions.