A city experiences a heavy rainfall. Days later, when no rainwater is present, rock, debris, and soil fall down a steep hill.Which type of mass movement does this describe?

Rock, debris, and soil moving rapidly down a steep hill is a landslide. A mudflow requires a flowing mixture with substantial water, but the question says no rainwater is present when the material moves. Creep is very slow, and a slump is a specific type of downward movement in a curved slide.

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