How is the nitrogen of the environment utilized for life on earth?

How is the nitrogen of the environment utilized for life on earth?

ماحول کے نائٹروجن کو زمین پر زندگی کے لئے کس طرح استعمال کیا جاتا ہے؟
Explanation

Lightning, along with high temperature and pressure, helps convert atmospheric nitrogen (N2) into usable forms like nitrates and ammonia.

These compounds are then absorbed by plants and enter the food chain, supporting life on Earth.