Question

Which horizon of soil contain more amount of humus​

Answer 1

Explanation:

The horizons are: 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.

Here you go⚡

Answer 2

Answer:

topsoil

Explanation:

The A horizon is the top layer of the mineral soil horizons, often referred to as 'topsoil'. This layer contains dark decomposed organic matter, which is called "humus".