Chapter 9 discusses concepts of mass wasting as a geological process. Instead of wasting your time, why not take this quiz to see how well you have mastered mass wasting concepts?

1			What is the slowest type of mass wasting process? Need a Hint?
			A)	debris flow
			B)	rock avalanche
			C)	creep
			D)	rotational slump
2			Any unconsolidated material at the Earth's surface of any size is called:
			A)	debris
			B)	talus
			C)	scree
			D)	soil
3			A descending mass moving downslope as a viscous fluid is referred to as:
			A)	fall
			B)	slide
			C)	flow
			D)	slump
4			The driving force behind all mass wasting processes is: Need a Hint?
			A)	slope angle
			B)	gravity
			C)	presence of water
			D)	presence of vegetation
5			The resistance to movement or deformation of debris is its:
			A)	shear strength
			B)	mass
			C)	shear force
			D)	density
6			Flow of water-saturated debris over impermeable material is called:
			A)	flow
			B)	slip
			C)	fall
			D)	solifluction
7			An apron of fallen rock fragments that accumulates at the base of a cliff is called:
			A)	soil
			B)	sediment
			C)	talus
			D)	debris
8			Which of the following is effective in preventing rocks from falling on a roadway?
			A)	install a "net" of chain-link fencing over exposed rock outcrops.
			B)	install rock bolts that "stitch" the rocks together
			C)	spray cement or other binding compounds (such as grout) on exposed rock outcrops.
			D)	all of these are effective methods
9			Slopes that have been stable for many years may sometimes fail catastrophically. What is a common trigger for these failures? Need a Hint?
			A)	Growth of vegetation on the slope
			B)	draining of water from the slope
			C)	reducing the gradient of the slope
			D)	addition of water to the slope
10			A rockfall occurs when:
			A)	soil and debris move downlsope as a viscous fluid
			B)	rock layers are displace slowly downslope year after year
			C)	a block of bedrock breaks off and falls freely from a cliff
			D)	none of these
11			For mass wasting to occur, what forces must become unbalanced?
			A)	gravity and friction
			B)	gravity, normal force, shear force
			C)	shear force and friction
			D)	normal force, shear force, friction
12			Some form of mass wasting occurs:
			A)	whenever slopes are steeper than the angle of repose
			B)	only when abundant water is added to a slope
			C)	on any slope
			D)	as a result of plate motions
13			Mass wasting processes are classified according to:
			A)	rate of movement
			B)	type of material
			C)	type of movement
			D)	all of these
14			One method of stabilizing slopes to prevent mass wasting is:
			A)	make the slope steeper
			B)	add weight to the slope
			C)	cut away the base of the slope with heavy equipment
			D)	vegetate the slope.
15			Slopes can be destabilized and the potential for mass wasting increased by:
			A)	making the slope steeper
			B)	draining water from the slope
			C)	adding a retaining wall to a slope
			D)	none of this will destablize a slope
16			Mass wasting events may be triggered by:
			A)	earthquakes
			B)	torrential rain
			C)	melting of permafrost
			D)	all of these
17			Which of the following is not a form of mass wasting?
			A)	a mudflow
			B)	an avalanche
			C)	a pyroclastic flow
			D)	a landslide
18			Rock avalanches are most common:
			A)	in the deep sea
			B)	in areas where glaciers have deposited boulders and other gravel
			C)	in areas of steep topography where large earthquakes are possible
			D)	all of these can generate rock avalanches
19			The downslope movement of material under the influence of gravity is known as:
			A)	mass wasting
			B)	land sliding
			C)	downslope movement
			D)	none of these
20			Which of the following mass wasting phenomenon could a person outrun?
			A)	rock avalanche
			B)	debris flow
			C)	mudflow
			D)	a person could not outrun any of these phenomena