Why are bacteria necessary for life on Earth to exist? Select three options. Bacteria help produce the oxygen that plants and animals need.
Bacteria help produce some of the foods we eat.
Bacteria put atoms together to form water that plants and animals need.
Bacteria are required for plants and animals to reproduce.
Bacteria decompose rotting plant and animal material.

Bacteria decompose rotting plant animal material.

Explanation:

Theres good bacteria, and theres bad bacteria. some helps, and some makes things worse. so really, in some sense all of the above.

Hope that helps.

the reaction mixture contains some ammonia, plus a lot of unreacted nitrogen and hydrogen. the mixture is cooled and compressed, causing the ammonia gas to condense into a liquid. the liquefied ammonia is separated and removed. the unreacted nitrogen and hydrogen are then recycled back into the reactor .