Which landslide type features rotational backward movement of the displaced material?

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Accepted Answer

1. A slump is a landslide where the mass moves along a curved surface.
2. The movement is rotational and the top of the slide moves backward toward the slope.
3. Rockslide is a planar slide; rock fall and debris fall are free-fall types.
4. Thus the landslide with rotational backward movement is **slump**.
FINAL_ANSWER: c

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