Question

Arrange the layers of soil from top to bottom in the correct order.

• A. Topsoil
• B. Subsoil
• C. Weathered rock
• D. Parent rock

Answer 1

Soil, a biologically active, porous medium developed in the uppermost layer of Earth’s crust, has multiple layers. The topmost layer of soil is the topsoil followed by the subsoil. Below the subsoil lies weathered rock material. The bottom-most layer is the bedrock, also called the parent rock.