Which soil has a high, dark clay content and shows significant expansion and contraction due to wetting and drying?
A)Chernozem
B)Gleysol
C)Podzol
D)Andisol

Question

Quizplus · Accepted Answer

Gleysols are characterized by high clay content, dark color, and significant expansion and contraction due to wetting and drying. This is because they are poorly drained and have a high water table, leading to the accumulation of organic matter and reducing conditions, which promote clay formation. Chernozem is a type of grassland soil with a deep, dark layer of fertile topsoil and is not known for its clay content or shrink-swell properties. Podzols are acid soils found in coniferous forests, and Andisols are volcanic soils that are rich in organic matter and minerals but do not necessarily have high clay content or shrink-swell properties.

Which Soil Has a High, Dark Clay Content and Shows