7th grade biology. Describe nitrogen path - HELP!!!?

Question

describe the path of nitrogen through its biogeochemical cycle. PLease help. i need awnsers

Answer 1

The information you need is called "the nitrogen cycle".
Bacteria play a necessary role in this cycle . Four kinds of bacteria are involved: Bacteria of decay, nitrifying (nitrite/nitrate ) bacteria,
denitrifying bacteria and nitrogen-fixing bacteria.
Lightning also plays a small role in the cycle.

This site has a decent diagram; I'm sure that you can find others also:

http://www.enviroliteracy.org/article.php/479.html

Answer 2

Hmmm I'm not sure this is quite 7th grade level but here's what I know::
Amino Acids & Nucleotides ---(ammonification)--> ammonia ---(nitrification)--> nitrite ion ---(denitrification)--> nitrite ---(denitrification)-->nitric oxide ---> nitrogen ---(nitrogen fixation such as lightning)-->ammonia---(used by plants)-->amino acids! back at the top again...

Hope it helped=)