This cycle shows how nitrogen moves from atmosphere to living beings (plants and animals) and then back to atmosphereLet’s see what happens in the Nitrogen CycleAtmosphere Has 78% NitrogenNitrogen gets fixed byRhizobium bacteriaBlue Green AlgaeLightningNote: Rhizobium Bacteria lives in roots of pea Nitrogen Fixation: In the nitrogen cycle, molecular nitrogen enters the biological pathways primarily through an assimilation by certain microorganisms, particularly bacteria, and also through lightning. Such a process is referred to as nitrogen fixation. Nitrogen fixation is carried out by certain species of bacteria and cyanobacteria in both aerobic and anaerobic environments. Some are free-living, occurring in soil or in water, while others exist in symbiotic relationships with ... Learn about the nitrogen cycle, including the steps of the cycle and the impact of human activities on these processes. In this article, we will learn about the various steps involved through the well-labeled diagram of the nitrogen cycle. The labeled diagram of the nitrogen cycle with arrows is shown below along with its various steps:
