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

Question

Quizplus · Accepted Answer

Freezing, thawing, wetting, and drying contribute to soil creep by causing the soil to expand and contract, lifting particles and dropping them downslope. This process causes the individual particles to slowly move downhill, contributing to the overall downhill movement of the soil mass.

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