mass wasting

Question 1

What nongeologic term is commonly used to describe a sudden event in which large volumes of material move down steep slopes?

Answer 1

Landslide

Question 2

Stream valleys are produced through combined effects of mass wasting and running water. If running water alone were responsible for creating stream valleys, how would they appear?

Answer 2

Narrow valleys with vertical walls

Question 3

What is the angle of repose?

Answer 3

The steepest angle at which a material remains at rest

Question 4

What is the angle of repose for a sediment such as sand?

Answer 4

33°

Question 5

Southern California is famous for its wildfires, which are often exacerbated by the Santa Ana winds blowing through the canyons. What mass wasting event will later devastate the same fire-affected areas?

Answer 5

Mudflows

Question 6

Which type of motion will supply material to and maintain talus slopes?

Answer 6

Fall

Question 7

What is the fastest form of mass wasting?

Answer 7

Rock avalanche