Question

Which of these is a type of mass movement in which materials move like a river?

1) wildfire
2) mudflow
3) soil creep
4) rockslide

Answer 1

A type of mass movement in which materials move like a river is a mudflow. Mudflows occur when slope material becomes saturated with water and can cause flooding.

Step-by-step explanation:

One type of mass movement in which materials move like a river is a mudflow. Mudflows occur when slope material becomes saturated with water, forming a slurry of rock and mud. This slurry can pick up trees, houses, and cars, causing flooding along its path.

Other types of mass movements listed in the question include wildfires, soil creep, and rockslides. While these movements can also cause damage and displacement, they do not involve materials moving like a river.