The term nitrogen cycle refers to the process through which nitrogen transforms into its various states or forms. The process can be biological or physical and has four parts: fixation, ammonification, nitrification and denitrification.
Because so much of the Earth's atmosphere consists of nitrogen (greater than ¾), it is extremely important for scientists to understand this process in order to determine and comprehend its effects on various ecosystems.
Some examples of the nitrogen cycle include the following:
The nitrogen cycle is affected by factors that work to facilitate the conversion of nitrogen into various states and back through the atmosphere.
These factors include:
Now you have lots of different examples of how the nitrogen cycle works and of some of the things that can impact the nitrogen cycle. These examples should help you better understand this important and life-sustaining process.