Soils are developmental sequences, distinctive layers that develop in place. B horizon refers to
A) the topsoil layer where organic material and rock undergo chemical and mechanical decomposition.
B) the layer where clays accumulate as rainfall and snowmelt transport them downward.
C) a mineral horizon consisting of parent material.
D) the cultural layer between the topsoil and mineral horizon.

Question

Quizplus · Accepted Answer

B horizon is known as the subsoil or the layer beneath the topsoil where materials such as clays, iron, and organic matter that are leached from the A horizon (topsoil) accumulate. This process is facilitated by the movement of water through the soil profile.

Soils Are Developmental Sequences, Distinctive Layers That Develop in Place