Two things. Wave in water or wave with a hand.
A landslide is any geologic process in which gravity causes rock, soil, artificial fill or a combination of the three to move down a slope. Several things can trigger landslides, including the slow weathering of rocks as well as soil erosion, earthquakes and volcanic activity. (I gooogled this sorry if it doesn’t help, it might help you cancel out some answers tho)
Answer:
the sentence it self explains it all
