Question

Azotobacter fixes atmospheric nitrogen in the soil by

Answer 1

absorbing it
then using it for body processes and
then as a waste

Answer 2

Hey mate

They are aerobic, free-living soil microbes which play an important role in the nitrogen cycle in nature, binding atmospheric nitrogen, which is inaccessible to plants, and releasing it in the form of ammonium ions into the soil (nitrogen fixation)

hope it helps you