Question 1

What is the major and immediate controlling force in mass wasting?

Accepted Answer

A)  Chemical weathering as bonds fall apart, weakening minerals. 
B)  Gravity, as this pulls matter downhill. 
C)  Convection, as this drives mantle convection and tectonic uplift. 
D)  Coriolis force, as it controls cyclonic winds and transport of precipitation. 
A)  Chemical weathering as bonds fall apart, weakening minerals. 
B)  Gravity, as this pulls matter downhill. 
C)  Convection, as this drives mantle convection and tectonic uplift. 
D)  Coriolis force, as it controls cyclonic winds and transport of precipitation. B

Question 2

How does human activity not induce thawing of permafrost in the Arctic?

Accepted Answer

A)  travelling on and removing tundra vegetation 
B)  building roads and railways 
C)  flying over permafrost areas 
D)  constructing buildings directly on the ground 
A)  travelling on and removing tundra vegetation 
B)  building roads and railways 
C)  flying over permafrost areas 
D)  constructing buildings directly on the ground C

Question 3

When and where is solifluction common?

Accepted Answer

A)  rainy season in the tropics 
B)  monsoon season in India 
C)  summer in polar regions 
D)  dry season in grasslands south of the Sahara Desert 
A)  rainy season in the tropics 
B)  monsoon season in India 
C)  summer in polar regions 
D)  dry season in grasslands south of the Sahara Desert C

Question 4

What is the chief mass wasting concern associated with permafrost?

Accepted Answer

A)  Manmade structures tip, sag, and slide when the permafrost melts because of insulation or heating associated with the structures. 
B)  Frozen soils fail and slide like fractured bedrock. 
C)  Debris flows of ice and soils occur frequently. 
D)  Ice in the frozen soils is low density and low strength, failing by fracture under any applied load. 
A)  Manmade structures tip, sag, and slide when the permafrost melts because of insulation or heating associated with the structures. 
B)  Frozen soils fail and slide like fractured bedrock. 
C)  Debris flows of ice and soils occur frequently. 
D)  Ice in the frozen soils is low density and low strength, failing by fracture under any applied load.

Question 5

What two geologic factors prepared Turtle Mountain or made it prone to slides like that of April 29, 1903?

Accepted Answer

A)  heavy rain and snowpack melt, causing debris flows 
B)  oversteepening of the mountain by glacial erosion and well- developed joints in the rocks 
C)  Blackfoot hex on the mountain, and excessive game trails 
D)  active volcanism and an earthquake 
A)  heavy rain and snowpack melt, causing debris flows 
B)  oversteepening of the mountain by glacial erosion and well- developed joints in the rocks 
C)  Blackfoot hex on the mountain, and excessive game trails 
D)  active volcanism and an earthquake

Question 6

What removes vegetation from a slope?

Accepted Answer

forest fires, loggin

Question 7

Which of the following mass movements is most likely to occur in a geologic setting where the rock strata are inclined?

Accepted Answer

A)  creep 
B)  slump 
C)  rockslide 
D)  debris flow 
A)  creep 
B)  slump 
C)  rockslide 
D)  debris flow

Question 8

________describes the downslope movement of cohesive material along a well defined surface such as a joint or a bedding plane.

Accepted Answer

A)  Fall 
B)  Avalanche 
C)  Slide 
D)  Woo hoo! 
A)  Fall 
B)  Avalanche 
C)  Slide 
D)  Woo hoo!

Question 9

A _________occurs where slopes are water saturated above permafrost.

Accepted Answer

A)  rock fall 
B)  debris flow 
C)  slump 
D)  solifluction lobe 
A)  rock fall 
B)  debris flow 
C)  slump 
D)  solifluction lobe

Question 10

Which mass- wasting event involves movement on a zone of compressed air?

Accepted Answer

A)  earthflow 
B)  rockslide 
C)  creep 
D)  slump 
A)  earthflow 
B)  rockslide 
C)  creep 
D)  slump

Question 11

All of the following are possible indicators that creep is occurring except for_________ .

Accepted Answer

A)  tilted fences or power line poles 
B)  cracks in roads or sidewalks 
C)  a thick soil profile 
D)  curved tree trunks 
A)  tilted fences or power line poles 
B)  cracks in roads or sidewalks 
C)  a thick soil profile 
D)  curved tree trunks

Question 12

During wet weather or times when snow is melting, what sometimes happens to the downhill toe of a slump?

Accepted Answer

A)  It turns into a rock avalanche. 
B)  It collapses and is deposited as talus at the base of the slope. 
C)  It stops moving because water makes the clay sticky. 
D)  It becomes an earthflow. 
A)  It turns into a rock avalanche. 
B)  It collapses and is deposited as talus at the base of the slope. 
C)  It stops moving because water makes the clay sticky. 
D)  It becomes an earthflow.

Question 13

What term denotes the exposed slip (fracture) surface beneath a slump block?

Accepted Answer

A)  toe 
B)  scarp 
C)  sole 
D)  scoop 
A)  toe 
B)  scarp 
C)  sole 
D)  scoop

Question 14

When descending cohesive material moves "en masse" along a curved surface of rupture that just formed, it is termed a_____ .

Accepted Answer

A)  flow 
B)  slump 
C)  sag 
D)  creep 
A)  flow 
B)  slump 
C)  sag 
D)  creep

Question 15

The largest slumps and debris flows occur along the______ .

Accepted Answer

A)  shorelines of Hudson Bay 
B)  oversteepened mountain slopes in recently deglaciated valleys 
C)  caldera rims of major composite cone volcanoes 
D)  continental shelf edge and continental slopes 
A)  shorelines of Hudson Bay 
B)  oversteepened mountain slopes in recently deglaciated valleys 
C)  caldera rims of major composite cone volcanoes 
D)  continental shelf edge and continental slopes

Question 16

All of the following are factors affecting mass wasting except for ________.

Accepted Answer

A)  water 
B)  geologic age 
C)  gravity 
D)  slope angle 
A)  water 
B)  geologic age 
C)  gravity 
D)  slope angle

Question 17

How do mass wasting processes differ from erosional ones?

Accepted Answer

A)  Mass wasting is always very fast and catastrophic whereas erosion is always slow and gradual. 
B)  Mass wasting does not require a transport agent such as wind, water, or glacial ice. 
C)  Mass wasting is a spring and summer phenomenon while erosion is year around. 
D)  Erosion usually requires steep slopes whereas mass wasting can happen even on flat terrains. 
A)  Mass wasting is always very fast and catastrophic whereas erosion is always slow and gradual. 
B)  Mass wasting does not require a transport agent such as wind, water, or glacial ice. 
C)  Mass wasting is a spring and summer phenomenon while erosion is year around. 
D)  Erosion usually requires steep slopes whereas mass wasting can happen even on flat terrains.

Question 18

What is the physical mechanism that drives creep?

Accepted Answer

A)  freeze/thaw or wet/dry cycles 
B)  overbearing slopes 
C)  gravity fluctuations during earthquakes 
D)  erosion and sedimentation 
A)  freeze/thaw or wet/dry cycles 
B)  overbearing slopes 
C)  gravity fluctuations during earthquakes 
D)  erosion and sedimentation

Question 19

Which statement best describes liquefaction?

Accepted Answer

A)  Deep- sea sediments lose water during subduction which liquefies overlying mantle rock. 
B)  High volumes of liquid are injected into the ground, eliminating its cohesion. 
C)  Upon intense shaking, surface materials lose their strength and behave as fluid- like masses that flow. 
D)  Coal beds are heated and liquified for fuel. 
A)  Deep- sea sediments lose water during subduction which liquefies overlying mantle rock. 
B)  High volumes of liquid are injected into the ground, eliminating its cohesion. 
C)  Upon intense shaking, surface materials lose their strength and behave as fluid- like masses that flow. 
D)  Coal beds are heated and liquified for fuel.

Question 20

The angle of repose in unconsolidated materials varies from_______ depending on the size and cohesion of particles.

Accepted Answer

A)  5° to 14° 
B)  25° to 40° 
C)  50° to 90° 
D)  2.5° to 4.0° 
A)  5° to 14° 
B)  25° to 40° 
C)  50° to 90° 
D)  2.5° to 4.0°

What is the major and immediate controlling force in mass wasting?

How does human activity not induce thawing of permafrost in the Arctic?

When and where is solifluction common?

What is the chief mass wasting concern associated with permafrost?

What two geologic factors prepared Turtle Mountain or made it prone to slides like that of April 29, 1903?

What removes vegetation from a slope?

Which of the following mass movements is most likely to occur in a geologic setting where the rock strata are inclined?

________describes the downslope movement of cohesive material along a well defined surface such as a joint or a bedding plane.

A _________occurs where slopes are water saturated above permafrost.

Which mass- wasting event involves movement on a zone of compressed air?

All of the following are possible indicators that creep is occurring except for_________ .

During wet weather or times when snow is melting, what sometimes happens to the downhill toe of a slump?

What term denotes the exposed slip (fracture) surface beneath a slump block?

When descending cohesive material moves "en masse" along a curved surface of rupture that just formed, it is termed a_____ .

The largest slumps and debris flows occur along the______ .

All of the following are factors affecting mass wasting except for ________.

How do mass wasting processes differ from erosional ones?

What is the physical mechanism that drives creep?

Which statement best describes liquefaction?

The angle of repose in unconsolidated materials varies from_______ depending on the size and cohesion of particles.

An Introduction to Geology and Plate Tectonics

Minerals: the Building Blocks of Rocks

Igneous Rocks

Volcanoes and Volcanic Processes

Weathering and Soil

Metamorphism and Metamorphic Rocks

Geologic Time

Crustal Deformation

Earthquakes and Earths Interior

The Ocean Floor

Plate Tectonics: the Framework for Modern Geology

Mountain Building and Continental Frameworks

Mass Wasting: the Work of Gravity

Running Water

Groundwater

Glaciers and Glaciation

Deserts and Winds

Shorelines

Mineral and Energy Resources

Filters

Exam 6: Sedimentary Rocks

What is the major and immediate controlling force in mass wasting?

How does human activity not induce thawing of permafrost in the Arctic?

When and where is solifluction common?

What is the chief mass wasting concern associated with permafrost?

What two geologic factors prepared Turtle Mountain or made it prone to slides like that of April 29, 1903?

What removes vegetation from a slope?

Which of the following mass movements is most likely to occur in a geologic setting where the rock strata are inclined?

________describes the downslope movement of cohesive material along a well defined surface such as a joint or a bedding plane.

A _________occurs where slopes are water saturated above permafrost.

Which mass- wasting event involves movement on a zone of compressed air?

All of the following are possible indicators that creep is occurring except for_________ .

During wet weather or times when snow is melting, what sometimes happens to the downhill toe of a slump?

What term denotes the exposed slip (fracture) surface beneath a slump block?

When descending cohesive material moves "en masse" along a curved surface of rupture that just formed, it is termed a_____ .

The largest slumps and debris flows occur along the______ .

All of the following are factors affecting mass wasting except for ________.

How do mass wasting processes differ from erosional ones?

What is the physical mechanism that drives creep?

Which statement best describes liquefaction?

The angle of repose in unconsolidated materials varies from_______ depending on the size and cohesion of particles.

An Introduction to Geology and Plate Tectonics

Minerals: the Building Blocks of Rocks

Igneous Rocks

Volcanoes and Volcanic Processes

Weathering and Soil

Metamorphism and Metamorphic Rocks

Geologic Time

Crustal Deformation

Earthquakes and Earths Interior

The Ocean Floor

Plate Tectonics: the Framework for Modern Geology

Mountain Building and Continental Frameworks

Mass Wasting: the Work of Gravity

Running Water

Groundwater

Glaciers and Glaciation

Deserts and Winds

Shorelines

Mineral and Energy Resources

Filters