62.9k views
4 votes
How does nitrogen return from the atmosphere?

User Spi
by
6.8k points

1 Answer

3 votes

Answer:

When plants or animals die the nitrogen in their bodies is converted via many routes to nitrate. The same happens with the nitrogen they excrete.

Denitrifying bacteria (not nitrogen fixating bacteria) convert nitrate back into nitrogen gas, which returns to the atmosphere.

Step-by-step explanation:

Hope this hrlps

User Ankush Sharma
by
7.2k points