From the land surface downward to the unweathered bedrock, which of the following is the correct order of the different soil horizons?
A) D, E, C, B, A, bedrock
B) A, B, C, D, E, bedrock
C) E, A, B, C, O, bedrock
D) O, A, E, B, C, bedrock

Question

Quizplus · Accepted Answer

The correct order from the land surface downward is: O (organic matter), A (topsoil), E (eluviation layer), B (subsoil), C (parent material), and then bedrock. This sequence reflects the typical vertical arrangement of soil horizons from the surface to the underlying unweathered rock.

From the Land Surface Downward to the Unweathered Bedrock, Which