Question

In the soil profile, which layer is harder and more compact?

• A. Bedrock
• B. Subsoil
• C. Surface soil
• D. Parent rock

Answer 1

The correct option is A Bedrock

Bedrock is the lowermost layer of soil. It lies beneath the soil layers. It is hard and made of rocks. Its constituents are tightly bound to each other.

The subsoil is formed by the horizon B. Layer C forms the parent material.

Surface soil is the upper layer of soil that withers away easily under the effect of water, air etc causing soil erosion.

So, option A " Bedrock" is the correct answer.