What is biological nitrogen fixation? List atleast two goranisms involved in nitrogen fixation.
How is nitrogen improtant ot plantsgt

Explanation

Nitrogen fixation is the process is the process of converting atmospheric nitrogen into ammonia by the activity of organisms each such as Rhizobium living in the root nodules of the legumes.
Nitrogen is the component of macromolecules like proteins, nucleic acid and it is also important for various metabolic activities.