Question

the layer of humus is usually found _​

Answer 1

Answer:

O -(humus or organic) Mostly organic matter such as decomposing leaves. The O horizon is thin in some soils, thick in others, and not present at all in others. A -(topsoil) Mostly minerals from parent material with organic matter incorporated. A good material for plants and other organisms to live.

Explanation:

Answer 2

Answer:

The layer of humus is mostly found on the upper layer of the soil(topsoil).

Explanation:

The upper layer of the soil is the most fertile layer of the soil and it is mainly because of humus which is rich in minerals and also due to organic matter contents in it.....

Hope this Helps....