Suelo y rocas: capas de tierra

The video tutorial explains the two main layers of soil: mulch and subsoil. The mulch layer, rich in humus, contains nutrients essential for plant growth. It varies in depth and is darker in color. Below the mulch is the subsoil, which is lighter and lacks humus. Beneath the subsoil lies the bedrock, a solid rock layer.

Describe the characteristics of the subsoil layer.

What lies beneath the subsoil layer?