Question

This layer of soil has a lesser amount of humus, it is harder and more compact. Which layer of soil are we referring to?

• A. Top soil
• B. A-horizon
• C. B- horizon
• D. C-horizon

Answer 1

The correct option is C

B- horizon

The correct option is C:

Explanation of the correct option:

This layer of soil has a lesser amount of humus, it is harder and more compact.

Explanation of the incorrect option:

Option A:

1. This layer consists of decomposed and organic material.
2. Humus makes them soft and porous to hold enough air and water.

Option B:

The topsoil is also called an A- horizon.

Option D:

It contains no organic matter and is made up of stones and rocks.

Final Answer: B- horizon layer of soil has a lesser amount of humus, it is harder and more compact.