Explanation:
The nitrogen cycle is responsible for maintaining the N₂ content in the biosphere. It involves several processes:
1. Nitrogen Fixation – Conversion of atmospheric N₂ into ammonia (NH₃) by nitrogen-fixing bacteria (e.g., Rhizobium, Azotobacter).
2. Nitrification – Conversion of ammonia to nitrites (NO₂⁻) and then to nitrates (NO₃⁻) by nitrifying bacteria.
3. Assimilation – Plants absorb nitrates from the soil and use them to make proteins.
4. Ammonification – Decomposition of organic matter releases ammonia.
5. Denitrification – Conversion of nitrates back to nitrogen gas (N₂) by denitrifying bacteria (e.g., Pseudomonas), returning it to the atmosphere.
This cycle ensures that nitrogen levels remain balanced in the biosphere.
Explanation by: Mr. Dubey
The nitrogen cycle is responsible for maintaining the N₂ content in the biosphere. It involves several processes:
1. Nitrogen Fixation – Conversion of atmospheric N₂ into ammonia (NH₃) by nitrogen-fixing bacteria (e.g., Rhizobium, Azotobacter).
2. Nitrification – Conversion of ammonia to nitrites (NO₂⁻) and then to nitrates (NO₃⁻) by nitrifying bacteria.
3. Assimilation – Plants absorb nitrates from the soil and use them to make proteins.
4. Ammonification – Decomposition of organic matter releases ammonia.
5. Denitrification – Conversion of nitrates back to nitrogen gas (N₂) by denitrifying bacteria (e.g., Pseudomonas), returning it to the atmosphere.
This cycle ensures that nitrogen levels remain balanced in the biosphere.