What are the steps in the nitrogen cycle?

1. Fixation (bacteria converts nitrogen to ammonium so plants can use it)
2. Nitrification (bacteria changes ammonium to nitrates and plants absorb these nitrates)
3. Assimilation (plants absorbs nitrates it is then used for chlorophyll, nucleic, and amino acids)
4. Ammonification (plant or animal dies and turns nitrogen back into ammonium through decomposition)
5. Denitrification (bacteria release nitrogen into the air)

The us is first  the  u.s. economy  remains the  largest in the world  in terms of nominal  gdp. however, the  u.s. economy  loses its spot as the number one  economy  to china when  measured  in terms of  gdp  based on ppp. in these terms, china's  gdp  is $23.19 trillion exceeds the  u.s. gdp  of $19.42 trillion