The main downslope movement of subarctic and arctic landscapes is ________.
A) permafrost
B) mass wasting
C) mud slide
D) rock glacier
E) solifluction

Question

Quizplus · Accepted Answer

Solifluction is the main downslope movement in subarctic and arctic landscapes, which occurs when the active layer above the permafrost thaws during the summer and becomes saturated with water, causing slow downslope movement of soil and sediment. Permafrost, rock glaciers, and mudslides may also contribute to landscape movement, but they are not the main downslope movement. Mass wasting is a more general term that includes various types of downslope movement, but it is not specific to subarctic and arctic landscapes.

The Main Downslope Movement of Subarctic and Arctic Landscapes Is