Question

How do plants get atmospheric nitrogen

Answer 1

There is symbiotic relationship between plant and Rizobium Bacteria.
It helps to convert the atmospheric nitrogen into a form which can be absorbed by the soil and in place of that the plant provide space for bacteria to live.
This is called nitrogen fixation.

Answer 2

The plants gets atmospheric Nitrogen through the soil as the Rhizobium present in the roots of leguminous plants converts this Nitrogen into a form that the plants can take in............