Nitrogen Fixation is a biological process in which the nitrogen gas is converted into a usable form for plants and other microbes. (1 Mark) In this process, nitrogen gas present in the atmosphere is converted into ammonia and other related nitrogenous compounds. (1 Mark)
Nitrogen is an important component of all life. It is a major constituent of biomolecules such as proteins, nucleic acids.(1 Mark) It forms other cellular constituents too which are essential for all forms of life. (1 Mark)