My name is jeff and idk about the answer
The field of geography describes the field in which people study the land, land features, the inhabitants of the land, and the land phenomena of the Earth, and the other planets of the Solar System.
Resourses i believe........
Landslides and avalanches are the most dramatic, sudden, and dangerous examples of earth materials moved by gravity. Landslides are sudden falls of rock, whereas avalanches are sudden falls of snow.