The single most important mechanism of transport for weathered overburden in the subarctic zones is ________.
A) mass wasting
B) frost wedging
C) oxidation
D) exfoliation
E) hydrolysis

Question

Quizplus · Accepted Answer

Mass wasting, also known as landslides or slope failure, is the most important mechanism of transport for weathered overburden in subarctic zones. This is because the freezing and thawing cycle, which is common in subarctic zones, causes the soil to become unstable and prone to sliding down slopes. This process is further accentuated by the presence of permafrost, which can create a slippery layer that makes it easier for soil and rock to move downhill. Frost wedging, oxidation, exfoliation, and hydrolysis are all important weathering processes, but they do not contribute as significantly to the transport of weathered material as mass wasting does.

The Single Most Important Mechanism of Transport for Weathered Overburden