The parent material layer of a soil is composed of weathered ______.
A) Humus
B) Organic detritus and roots
C) Residual aluminum and iron
D) Soil
E) Rock fragments

Question

Quizplus · Accepted Answer

The parent material layer of a soil is primarily composed of weathered rock fragments. This layer is the source of the mineral content of the soil, formed by the weathering of underlying rock or sediment.

The Parent Material Layer of a Soil Is Composed of Weathered