In 1-2 sentences
List the 3 steps of the nitrogen cycle, starting with nitrogen gas in the atmosphere.
1. Nitrogen gas in the atmosphere is converted into ammonia through nitrogen fixation by bacteria.
2. Ammonia is then converted into nitrites and then nitrates through nitrification by certain bacteria.
3. Nitrates can be taken up by plants, consumed by animals, and eventually decomposed back into nitrogen gas by denitrifying bacteria.