the soil of the temperate forest is often rich in humus which statement best explains the presence of humus in the temperate forest

a.

Explanation:

. Humus forms from fallen leaves, dead wood, and other dead organic matter.

Humus is formed by the decomposing action of soil microorganisms which break down animal and vegetable material into elements that can be used by growing plants

it is a

explanation:

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.