Question

Which layer of soil has little or no humus?

Answer 1

B horizon or subsoil

Answer 2

In the layers of the soil that has little humus is the subsoil. The subsoil is the layer after the topsoil. Humus is very important in plants because the humus keeps the moisture of the soil. It makes it easier for plants to drain the excess water as well as allows air to permeate into the soil