The soil layers from the surface down on a well-developed and undisturbed soil are:
A)O, A, E, B, C
B)A, B, C, E, O
C)A, B, O, C, E
D)O, A, B, E, C

Question

Quizplus · Accepted Answer

The correct sequence of soil layers is O, A, E, B, C. The O horizon consists of freshly decomposed organic matter, the A horizon is the topsoil layer rich in organic matter, the E horizon is the zone of leaching, the B horizon is the subsoil layer, and the C horizon is the parent material.

The Soil Layers from the Surface Down on a Well-Developed