Which layer has humus?(the organic component of soil,formed by leaves and other plant materials)

3 answers

Humus is primarily found in the topsoil layer, also known as the O layer or A horizon of soil. This layer is rich in organic material, including decomposed leaves, plants, and other organic matter, which contribute to the formation of humus. It plays a crucial role in nutrient retention and soil fertility.

Your choices are:
A horizon
B horizon
C horizon

The layer that contains humus is the A horizon. This is the topsoil layer, which is rich in organic material and contributes to soil fertility. The B horizon typically accumulates minerals leached down from the A horizon, while the C horizon consists of weathered parent material with less organic content.