Which type of mass wasting involves the extremely slow, downward movement of soil and rock debris, usually facilitated by alternate freeze-thaw or wetting-drying cycles on moderate slopes?

💡 Solution & Explanation

Soil creep represents the extremely slow, continuous downslope movement of regolith and soil particles driven by gravity and facilitated by environmental expansion and contraction cycles. Faster mass wasting events like mudflows, rockfalls, or solifluction involve distinct moisture levels or rapid displacement velocities.