Question

How microbes convert atmospheric nitrogen into a usable form

Answer 1

Nitrogen is converted from atmospheric nitrogen (N2) into usable forms, such as NO2-, in a process known as fixation. The majority of nitrogen is fixed by bacteria, most of which are symbiotic with plants. Recently fixed ammonia is then converted to biologically useful forms by specialized bacteria.

Answer 2

There are 3 ways to fix nitrogen

1 atmosphere- lighting

2 biological- blue green algae and rhizobium

3 industrial - fertilizers