The impermeable layer beneath saturated soil subject to solifluction may be ______.
A) the A-horizon
B) dehydrated
C) caliche
D) permafrost
E) coal

Question

Quizplus · Accepted Answer

The impermeable layer beneath saturated soil subject to solifluction may be permafrost, which is a layer of permanently frozen ground. This layer prevents water from draining downwards, which leads to the saturation of the soil above and contributes to the processes of solifluction. The other choices (A - A-horizon, B - dehydrated, C - caliche, E - coal) do not typically function as impermeable layers beneath the soil.

The Impermeable Layer Beneath Saturated Soil Subject to Solifluction May