When determining a hypothesis the validity of a hypothesis using the scientific method, which statement is true?

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.

what school and grade?

silty loam

hope this

cells spend most of their time in interphase