Question

3 proportion of humus in upper layer of good fertile soil is​

Answer 1

Answer:

pls mark brainlist

Explanation:

The proportion of humus in the upper layer of good fertile soil is about 33 % to 50%.

Answer 2

Answer:

Humus formation is a biological process. Only soils with optimal structural tilth have a humus content of 8-10 percent. Untouched soils in primeval forests can at best reach 20 percent.

Explanation:

Encyclopedic entry. Humus is dark, organic material that forms in soil when plant and animal matter decays. When plants drop leaves, twigs, and other material to the ground, it piles up.

request : plz make my answer brainly and thanks*_!_*