Question

Which of the following horizons is considered a region of subsoil?

A.O horizon

B.D horizon

C.A horizon

D.B horizon

Answer 1

B horizon

Step-by-step explanation:

This horizon is considered a region of subsoil!

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Answer 2

Let's see. It's definitely not the O horizon, because that layer is at the very top. A is already eliminated. Same thing with the A horizon, that is actually the top soil. C is out. It has to be either B or D. A D layer doesn't exist, so B is out. But the B horizon is considered a region of subsoil. The answer is D: B horizon.