Question

Nitrogen fixing microorganisms enrich the soil with assimilable nitrogen.

Answer 1

Nitrogen fixing microorganisms like rizobium present in the nodules of
leguminous plant like pea,gram,etc help to fix nitrogen. Nitrogen is taken by plant to make proteins

Answer 2

Answer:

Bacteria success rhizobium and certain blue-green algae present in the soil can fix atmospheric nitrogen and convert it into usable nitrogenous compounds, which are used by plants for the synthesis of plant proteins and other compounds.