Plz answer and tell me what number

1. Ammonification and Nitrogen Fixation

2. Assimilation

3. Nitrogen Gas and Denitrification

4. Ammonia and Ammonification

5. Plant dies, decomposers ammonify the dead plant, bacteria nitrifies it, and it is then denitrified by bacteria once again and is then released back into the atmosphere as nitrogen gas.

one would be wind another would be water density

i'll try what topic lol