Which term refers to a landslide?

cave formation

mass wasting

pollution

sedimentation

The answer would be Sedimentation

Answer: A landslide is defined as the movement of a mass of rock, debris, or earth down a slope. Landslides are a type of "mass wasting," which denotes any down-slope movement of soil and rock under the direct influence of gravity ... Earthquake shaking and other factors can also induce landslides underwater.