Question

questions

1. nitrogen gas enters the soil in a process called

and is done by the bacteria called

1. and change the nitrogen into

ammonium. in a process called

1. the bacteria turn ammonium into nitrites then into

nitrates by the process

1. plants take in nitrates by the process
2. bacteria convert back into a

gaseous nitrogen and puts it back into the atmosphere in a
process called

Explanation:

1. Nitrogen - fixing bacteria perform nitrogen fixation to introduce nitrogen gas into the soil.
2. Decomposers carry out ammonification to change nitrogen into ammonium.
3. Nitrifying bacteria convert ammonium to nitrites and then nitrates through nitrification.
4. Plants absorb nitrates via the process of absorption.
5. Denitrifying bacteria convert nitrates back to gaseous nitrogen through denitrification.

Answer:

1. Nitrogen - fixing bacteria; Nitrogen fixation
2. Decomposers; Ammonification
3. Nitrifying bacteria; Nitrification
4. Absorption
5. Denitrifying bacteria; Nitrates; Denitrification