When a Stream, Wave Action, or Excavation by Humans Undercuts

question 54

Multiple Choice

When a stream, wave action, or excavation by humans undercuts the base of a slope, slope failure may occur because __.

• A) ground water will be drained out of the slope
• B) the weight of the slope will have been reduced
• C) the shear force/stress on the base of a potential landslide mass will have been increased
• D) downslope support of the slope materials will have been reduced or eliminated
• E) the normal force/stress across the base of a potential landslide mass will have been reduced

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