Question

describe how nitrogen gets fixed in nature.

Answer 1

The enormous energy of lightning breaks nitrogen molecules and enables their atoms to combine with oxygen in the air forming nitrogen oxides. These dissolve in rain, forming nitrates, that are carried to the earth. Atmospheric nitrogen fixation probably contributes some 5– 8% of the total nitrogen fixed.

Answer 2

Here is your answer

They contain symbiotic bacteria called rhizobia within the nodules in their root system., Production nitrogen compound which are essential for plants to grow .
If the plant dies , The fixed Nitrogen gets released from the plant and hence helps other plants to fertilize and grow

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