What “organic compounds” make up viruses? bacteria?

Proteins and nucleic acids

Explanation:

Because they make up the capsid and core of the virus

explanation:

b,bacteria convert nitrates

into nitrogen gas.

d,plants and animals take in

and use nitrogen compounds.

e,bacteria break down waste    

products and return nitrogen  

to the soil.

a,bacteria convert atmospheric

nitrogen to ammonia.

c,bacteria convert ammonia

to nitrites and nitrates.

i believe it would cause an increase of percipitation, though i could be wrong. so i would say b is the answer.