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.

answer: 20 percent

the fish culture has become a developing commercial practice in developing countries which is already prominent in developed countries of the world. the major fish protein demand is being supplemented in developing countries is   fishing to meet the needs of the growing population. therefore, in some developing nations, the percentage of animal protein from fish in the diet can be as high as 20 percent.