How do freezing, thawing, wetting, and drying contribute to soil creep?
A)The soil becomes much weaker when dry and frozen.
B)Gravity exerts a much stronger force when the soil is wet and thawed.
C)The soil expands and contracts, lifting particles then lowering them a slight distance downslope.
D)Eventually these cause the soil and regolith to suddenly slide down the slope.

Question

Quizplus · Accepted Answer

Freezing and thawing cycles can cause soil particles to lift and lower, while wetting and drying can also contribute to the expansion and contraction of the soil, which leads to soil movement downslope. This gradual movement is known as soil creep.

How Do Freezing, Thawing, Wetting, and Drying Contribute to Soil