Chapter 11

Question 1

Which of the following types of mass movement takes place most gradually?

Answer 1

creep

Question 2

The immediate cause of incidents of mass movement is

Answer 2

gravitation

Question 3

The principal difference between a lahar and a mudflow is the

Answer 3

former mass contains pyroclastic debris from a volcanic eruption

Question 4

The type of mass movement shown in this drawing is a

11

Answer 4

rockslide.

Question 5

In this cross section, slope B is likely to be 11b

Answer 5

unstable because of bedding plane slippage.

Question 6

Which of the following types of mass movement travels down a curved surface?

Answer 6

slump

Question 7

Strictly speaking, which of the following types of mass movement is a landslide?

Answer 7

rock slide

Question 8

Which of the following factors decreases the risk of mass movement?

Answer 8

adding vegetation to the side of a hill

Question 9

Which of the following increases the risk of mass movement?

Answer 9

flooding the sediment with water beyond saturation

Question 10

What stripped the slope (in the middle of this photo) of trees and other vegetation? 11c

Answer 10

a large landslide

Question 11

Causes of mass movement.

Answer 11

gravity is driving force

Water, earthquake, no vegetation,

Question 12

Prevent mass movement

Answer 12

vegetation, hot weather, flat land

Question 13

Really slow MM-

Answer 13

Creep and slump block

Question 14

Fast MM-

Answer 14

Rock Fall, Mudslide, Laharz

Question 15

Slump blocks-

Answer 15

all moved at once or one block

Question 16

Slide-

Answer 16

water, all sizes of particles

Question 17

Rock fall-

Answer 17

vertical angle, rocks particles