Question 1

Which of the following natural disasters is linked in some way with landslides?

Accepted Answer

A)  Earthquakes 
B)  Floods 
C)  Volcanoes 
D)  Tsunamis 
E)  Earthquakes, floods, volcanoes, and tsunamis all have some connection with landslides. 
A)  Earthquakes 
B)  Floods 
C)  Volcanoes 
D)  Tsunamis 
E)  Earthquakes, floods, volcanoes, and tsunamis all have some connection with landslides.

Question 2

Placing a greater weight on the top of a slope can cause mass wasting to occur.

Accepted Answer

A) True 
 B)False

Question 3

In which location would you expect to have the most landslides at the END of the given sequence of events? For all areas, assume that each event (drought, wildfire and heavy rain) is identical.

Accepted Answer

A)  Location in the mountains that first experiences a long drought, then experiences wildfires, and then experiences heavy rain 
B)  Location in the mountains that first experiences wildfires, then experiences heavy rain, and then experiences a long drought 
C)  Location in the plains that first experiences a long drought, then experiences wildfires, and then experiences heavy rain 
D)  Location in the plains that first experiences wildfires, then experiences heavy rain, and then experiences a long drought 
A)  Location in the mountains that first experiences a long drought, then experiences wildfires, and then experiences heavy rain 
B)  Location in the mountains that first experiences wildfires, then experiences heavy rain, and then experiences a long drought 
C)  Location in the plains that first experiences a long drought, then experiences wildfires, and then experiences heavy rain 
D)  Location in the plains that first experiences wildfires, then experiences heavy rain, and then experiences a long drought

Question 4

Urbanization is one human activity that causes landslides. Explain three reasons why urbanization contributes to the incidence of landslides. Some urban areas are already at risk for landslides, describe two things that can be done to minimize the risk of landslides for these areas.

Accepted Answer

Urbanization can contribute to the incid

Question 5

Which of the following is NOT an important factor in the stability of a slope?

Accepted Answer

A)  Slope steepness 
B)  Climate 
C)  Direction of Sun exposure 
D)  Vegetation 
E)  Water 
A)  Slope steepness 
B)  Climate 
C)  Direction of Sun exposure 
D)  Vegetation 
E)  Water

Question 6

The amount of vegetation has a complex role in slope stability. Explain how the amount of vegetation can both increase and decrease slope stability.

Accepted Answer

1. Vegetation provides a protective cove

Question 7

If you see a gently sloping hillside with tilting utility poles, broken retaining walls, and trees with curved tree trunks, what type of mass wasting has probably occurred?

Accepted Answer

A)  Avalanche 
B)  Slump 
C)  Creep 
D)  Earth flow 
E)  Fall 
A)  Avalanche 
B)  Slump 
C)  Creep 
D)  Earth flow 
E)  Fall

Question 8

La Conchita, CA has been a site of two massive landslides within 10 years of each other. Explain what caused the landslides. If you were put in charge of land planning for La Conchita, explain how you would repurpose the land that was affected by the slide? Also, explain what you would put in an education packet for current and future residents of the homes unaffected by the previous slide.

Accepted Answer

The two massive landslides at La Conchit

Question 9

The term Avalanche only applies to the movement of snow down slopes.

Accepted Answer

A) True 
 B)False

Question 10

Snow avalanches usually move down chutes that have previously produced snow avalanches, making it easier to predict where a snow avalanche will occur.

Accepted Answer

A) True 
 B)False

Question 11

Explain the role of water in the stability of a slope.

Accepted Answer

Water affects slope stability in three b

Question 12

All slope are susceptible to some kind of mass wasting. Explain how mass wasting might affect a very steep slope and a very gentle slope.

Accepted Answer

Steep slopes are associated wi

Question 13

Does adding vegetation to a slope make it more or less stable?

Accepted Answer

A)  More stable because the roots will draw water deeper into the ground instead of allowing water to saturate the surface 
B)  More stable because the vegetation roots will hold together loose soil 
C)  Less stable because the vegetation adds weight to the slope 
D)  Less stable because the vegetation will keep more water at the surface of the slope 
E)  It depends on the slope, adding vegetation could make the slope either more or less stable. 
A)  More stable because the roots will draw water deeper into the ground instead of allowing water to saturate the surface 
B)  More stable because the vegetation roots will hold together loose soil 
C)  Less stable because the vegetation adds weight to the slope 
D)  Less stable because the vegetation will keep more water at the surface of the slope 
E)  It depends on the slope, adding vegetation could make the slope either more or less stable.

Question 14

Describe what each area would look like after a fall, a slide and a flow had occurred.

Accepted Answer

After a fall, there is usually a pile of

Question 15

Which of the following involves downslope movement of a coherent, usually large block of earth material along a planar surface?

Accepted Answer

A)  Rock fall 
B)  Rock slide 
C)  Creep 
D)  Earthflow 
E)  Slump 
A)  Rock fall 
B)  Rock slide 
C)  Creep 
D)  Earthflow 
E)  Slump

Question 16

The U.S. Midwest has relatively low risk for landslides mainly because the soils are extremely compacted and therefore strong.

Accepted Answer

A) True 
 B)False

Question 17

How do drains help to prevent landslides?

Accepted Answer

A)  Drains keep water at the surface, so that only the upper part of the slope is saturated. 
B)  Drains divert water away from the slope. 
C)  Drains pull water deeper into the base of the slope. 
D)  Drains anchor the soil to the ground keeping it from sliding. 
E)  Drains do not prevent landslides. 
A)  Drains keep water at the surface, so that only the upper part of the slope is saturated. 
B)  Drains divert water away from the slope. 
C)  Drains pull water deeper into the base of the slope. 
D)  Drains anchor the soil to the ground keeping it from sliding. 
E)  Drains do not prevent landslides.

Question 18

Explain how drains minimize the landslide hazard.

Accepted Answer

Surface and subsurface drainage control

Question 19

The climate surrounding a slope has very little impact on whether the slope will fail.

Accepted Answer

A) True 
 B)False

Question 20

How is the incidence of landslides expected to change in the future?

Accepted Answer

A)  Incidence of landslides will increase. 
B)  Incidence of landslides will decrease. 
C)  Incidence of landslides will stay the same. 
D)  Incidence of landslides will cease. 
E)  There is no way to tell whether the incidence of landslides will increase or decrease. 
A)  Incidence of landslides will increase. 
B)  Incidence of landslides will decrease. 
C)  Incidence of landslides will stay the same. 
D)  Incidence of landslides will cease. 
E)  There is no way to tell whether the incidence of landslides will increase or decrease.

Which of the following natural disasters is linked in some way with landslides?

Placing a greater weight on the top of a slope can cause mass wasting to occur.

In which location would you expect to have the most landslides at the END of the given sequence of events? For all areas, assume that each event (drought, wildfire and heavy rain) is identical.

Urbanization is one human activity that causes landslides. Explain three reasons why urbanization contributes to the incidence of landslides. Some urban areas are already at risk for landslides, describe two things that can be done to minimize the risk of landslides for these areas.

Which of the following is NOT an important factor in the stability of a slope?

The amount of vegetation has a complex role in slope stability. Explain how the amount of vegetation can both increase and decrease slope stability.

If you see a gently sloping hillside with tilting utility poles, broken retaining walls, and trees with curved tree trunks, what type of mass wasting has probably occurred?

The term Avalanche only applies to the movement of snow down slopes.

Snow avalanches usually move down chutes that have previously produced snow avalanches, making it easier to predict where a snow avalanche will occur.

Explain the role of water in the stability of a slope.

All slope are susceptible to some kind of mass wasting. Explain how mass wasting might affect a very steep slope and a very gentle slope.

Does adding vegetation to a slope make it more or less stable?

Describe what each area would look like after a fall, a slide and a flow had occurred.

Which of the following involves downslope movement of a coherent, usually large block of earth material along a planar surface?

The U.S. Midwest has relatively low risk for landslides mainly because the soils are extremely compacted and therefore strong.

How do drains help to prevent landslides?

Explain how drains minimize the landslide hazard.

The climate surrounding a slope has very little impact on whether the slope will fail.

How is the incidence of landslides expected to change in the future?

Introduction to Natural Hazards

Internal Structure of the Earth and Plate Tectonics

Earthquakes

Tsunamis

Volcanoes

Flooding

Subsidence and Soils

Atmosphere and Severe Weather

Hurricanes and Extratropical Cyclones

Coastal Hazards

Climate and Climate Change

Wildfires

Impacts and Extinctions

Filters

Exam 7: Mass Wasting

Which of the following natural disasters is linked in some way with landslides?

Placing a greater weight on the top of a slope can cause mass wasting to occur.

In which location would you expect to have the most landslides at the END of the given sequence of events? For all areas, assume that each event (drought, wildfire and heavy rain) is identical.

Urbanization is one human activity that causes landslides. Explain three reasons why urbanization contributes to the incidence of landslides. Some urban areas are already at risk for landslides, describe two things that can be done to minimize the risk of landslides for these areas.

Which of the following is NOT an important factor in the stability of a slope?

The amount of vegetation has a complex role in slope stability. Explain how the amount of vegetation can both increase and decrease slope stability.

If you see a gently sloping hillside with tilting utility poles, broken retaining walls, and trees with curved tree trunks, what type of mass wasting has probably occurred?

The term Avalanche only applies to the movement of snow down slopes.

Snow avalanches usually move down chutes that have previously produced snow avalanches, making it easier to predict where a snow avalanche will occur.

Explain the role of water in the stability of a slope.

All slope are susceptible to some kind of mass wasting. Explain how mass wasting might affect a very steep slope and a very gentle slope.

Does adding vegetation to a slope make it more or less stable?

Describe what each area would look like after a fall, a slide and a flow had occurred.

Which of the following involves downslope movement of a coherent, usually large block of earth material along a planar surface?

The U.S. Midwest has relatively low risk for landslides mainly because the soils are extremely compacted and therefore strong.

How do drains help to prevent landslides?

Explain how drains minimize the landslide hazard.

The climate surrounding a slope has very little impact on whether the slope will fail.

How is the incidence of landslides expected to change in the future?

Introduction to Natural Hazards

Internal Structure of the Earth and Plate Tectonics

Earthquakes

Tsunamis

Volcanoes

Flooding

Subsidence and Soils

Atmosphere and Severe Weather

Hurricanes and Extratropical Cyclones

Coastal Hazards

Climate and Climate Change

Wildfires

Impacts and Extinctions

Filters