Which best describes a slump? blocks of rock sliding down a slope rapid flow of water-saturated debris, most common in mountainous areas slippage of a block of material moving along a curved surface slow downhill movement of soil and regolith

blocks of rock sliding down a slope

Explanation:

Slumps are a type of block movement in which rocks detach from the massif and free fall down the slope, and may occur in different volumes and lithologies.

This process is associated with fractures in the rock mass. The movement is essentially vertical, where the rock fragments move along abrupt slopes, without contact with any surface, ie in free fall.