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What is the dominant type of weathering is shown in this photograph? What is the dominant type of weathering is shown in this photograph? A) dissolution B) chemical weathering C) debris flow D) hydrolysis E) physical weathering


A) dissolution
B) chemical weathering
C) debris flow
D) hydrolysis
E) physical weathering

F) B) and D)
G) A) and D)

Correct Answer

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What type of slope failure is shown in this figure? What type of slope failure is shown in this figure? A) rotational slide B) creep C) rock avalanche D) debris flow E) rock fall


A) rotational slide
B) creep
C) rock avalanche
D) debris flow
E) rock fall

F) A) and B)
G) B) and E)

Correct Answer

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A soil that has little or no O-horizon but a thick accumulation of calcium carbonate (caliche) most likely forms in:


A) a tropical climate
B) a temperate climate
C) an arid climate
D) an area with abundant rainfall
E) a short amount of time

F) A) and E)
G) None of the above

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Where does the quartz in granite typically end up?


A) as small clay minerals that are deposited in lakes and the sea
B) quartz does not weather and so it keeps the granite from weathering
C) it ends up as sand in rivers,dunes,and beaches
D) it is converted into feldspar and weathers into clays

E) A) and D)
F) None of the above

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Which of the following can we use to recognize prehistoric slope failures?


A) sedimentary deposits
B) orientation of beds and other geologic structures
C) masses of rock fragments that are unusual for an area
D) hummocky topography
E) all of these

F) B) and C)
G) C) and E)

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What events caused so much damage along the north coast of Venezuela in 1999?


A) a landslide shook loose a large piece of the mountains that caused the water in the reservoir to flood local towns
B) torrential rains caused debris flows and flash floods that raced through cities
C) the slow movement of slopes downhill broke apart houses but did not kill any people
D) overgrazing caused a loss of grass cover and resulted in severe soil erosion

E) B) and D)
F) A) and B)

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What type of slope failure is shown in this figure? What type of slope failure is shown in this figure? A) rotational slide B) creep C) earth flow D) debris flow E) rock avalanche


A) rotational slide
B) creep
C) earth flow
D) debris flow
E) rock avalanche

F) B) and D)
G) B) and E)

Correct Answer

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What happens to the surface area of exposed rock if a rock is fractured?


A) there are more pieces,but the surface area does not change
B) the surface area does not change because the volume does not change
C) the surface area increases as the rock is fractured
D) the surface area decreases as the rock is fractured

E) A) and C)
F) C) and D)

Correct Answer

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What is the angle of repose?


A) the angle of bedding on hills where layers dip parallel to the slope
B) the angle of fractures on hills where fractures dip parallel to the slope
C) the angle at which rainfall strikes an unstable slope
D) the steepest angle at which loose material remains stable

E) All of the above
F) A) and B)

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Which of the following factors control how minerals weather?


A) whether the mineral has ionic or covalent bonds
B) what type of mineral is present
C) the temperature at which the original minerals formed
D) whether a mineral typically crystallizes early or late in Bowen's Reaction Series
E) all of these

F) B) and E)
G) A) and D)

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The main feature shown in this photograph illustrates: The main feature shown in this photograph illustrates: A) weathering B) flooding C) permafrost D) slope failure


A) weathering
B) flooding
C) permafrost
D) slope failure

E) C) and D)
F) B) and C)

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Which of the following does NOT commonly occur when dark-colored mafic rocks weather?


A) mafic minerals weather to clay minerals by hydrolysis
B) iron-bearing minerals can oxidize to form the iron oxide mineral hematite
C) the abundant quartz in the rocks dissolves and forms silica-rich spring deposits
D) some minerals weather at different rate than other minerals

E) A) and B)
F) C) and D)

Correct Answer

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Which of the following factors is typically NOT used to classify slope failures?


A) whether the material involved is rock or is unconsolidated
B) the rate of movement
C) the climate in which the failure occurs
D) the mechanism by which material moves

E) A) and B)
F) A) and C)

Correct Answer

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Based on the photographs of La Conchita,California,what type of slope failure occurred?


A) rock avalanche
B) debris flow
C) creep
D) rock fall
E) earth flow

F) B) and C)
G) All of the above

Correct Answer

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What type of slope failure is shown in this figure? What type of slope failure is shown in this figure? A) debris avalanche B) creep C) rock slide D) debris flow E) rock fall


A) debris avalanche
B) creep
C) rock slide
D) debris flow
E) rock fall

F) None of the above
G) C) and D)

Correct Answer

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How does the character of a rock influence weathering


A) Fractures and other discontinuities block the entry of water into a rock and so make the rock more resistant to weathering.
B) Minerals that are soluble can be dissolved and reprecipitated and so are resistant to weathering.
C) Rocks that are broken have more surface area and so weather faster.
D) Rocks that are easily weathered and eroded generally form steep cliffs.
E) None of these.

F) A) and E)
G) A) and D)

Correct Answer

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Which of the following areas in the investigation terrain is least likely to cause casualties in the event of a slope failure?


A) Bent Fence Hills with the leaning trees
B) flanks of Flattop Hill
C) Rock Valley
D) the area below Tilted Mountain

E) A) and D)
F) B) and C)

Correct Answer

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Which of the following is true about how weathering affects fractured rocks?


A) weathering affects rocks from the outside in,forming an outer weathered zone or rind
B) weathering attacks corners from three sides and so these are preferentially removed
C) preferential weathering along fractures can cause blocks to become rounded
D) all of these

E) None of the above
F) A) and B)

Correct Answer

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What type of slope failure is shown in this figure? What type of slope failure is shown in this figure? A) rotational slide B) creep C) debris slide D) debris flow E) rock fall


A) rotational slide
B) creep
C) debris slide
D) debris flow
E) rock fall

F) A) and E)
G) All of the above

Correct Answer

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Which numbered feature on this figure is a scarp? Which numbered feature on this figure is a scarp? A) 1,a linear or curved scar marking where the slide pulled away from the hill B) 2,small fractures within the sliding block C) 3,the intact layers below the rock slide D) 4,the front of the slide,where it overruns the land surface E) 5,a valley or other open space in front of the slide


A) 1,a linear or curved scar marking where the slide pulled away from the hill
B) 2,small fractures within the sliding block
C) 3,the intact layers below the rock slide
D) 4,the front of the slide,where it overruns the land surface
E) 5,a valley or other open space in front of the slide

F) B) and C)
G) C) and E)

Correct Answer

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