Nitrogen Cycle

The video explains the nitrogen cycle, highlighting its importance for living organisms. It covers the four main processes: nitrogen fixation, decay, nitrification, and denitrification. Nitrogen fixation is detailed with biological, atmospheric, and industrial methods. The cycle continues with nitrification, where ammonia is converted to nitrates, and denitrification, which returns nitrogen to the atmosphere, completing the cycle.

Explain the process of nitrification and its significance in the nitrogen cycle.

How do denitrifying bacteria contribute to the nitrogen cycle?