What is the chief mass wasting concern associated with permafrost?
A)Debris flows of ice and soils occur frequently.
B)Frozen soils fail and slide like fractured bedrock.
C)Ice in the frozen soils is low density and low strength, failing by fracture under any applied load.
D)Manmade structures tip, sag, and slide when the permafrost melts because of insulation or heating associated with the structures.

Question

Quizplus · Accepted Answer

Permafrost melting undermines the stability of structures built on it, causing them to tip, sag, and slide. This is because the ice within the permafrost acts as a binding agent for the soil. When it melts, the soil loses its coherence and strength, leading to instability.

What Is the Chief Mass Wasting Concern Associated with Permafrost