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Mass Wasting Fundamentals and Prevention
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Mass Wasting Fundamentals and Prevention

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Questions and Answers

What is the term used to refer to all movement downslope?

  • Landslide
  • Debris flow
  • Rock topple
  • Mass wasting (correct)
  • Which term describes moving blocks of bedrock during a mass-wasting event?

  • Rock topple (correct)
  • Landslide
  • Debris flow
  • Rockfall
  • What type of mass wasting involves dominantly liquid material movement?

  • Rock topple
  • Rockfall
  • Flow (correct)
  • Rock slide
  • In which regions, due to their topography and rainfall, are hazardous mass-wasting events particularly likely to occur?

    <p>California coast, Rocky Mountain Region, and Pacific Northwest</p> Signup and view all the answers

    When does a slope fail in the context of mass wasting?

    <p>When it is too steep and unstable for existing materials and conditions</p> Signup and view all the answers

    What is a general term for fast-moving geologic material involved in mass wasting?

    <p>Landslide</p> Signup and view all the answers

    What are the two principal factors that ultimately determine slope stability?

    <p>Shear strength and slope angle</p> Signup and view all the answers

    Which force acting on a slope pushes the block down the slope?

    <p>Shear force (fs)</p> Signup and view all the answers

    What is the relationship between shear force and normal force known as?

    <p>Shear strength</p> Signup and view all the answers

    What does the angle of repose represent?

    <p>The stable angle at which material will not move downslope</p> Signup and view all the answers

    How does adding water to a sand pile affect the angle of repose?

    <p>Increases the angle of repose</p> Signup and view all the answers

    What component can significantly change the shear strength of a particular slope?

    <p>Water content</p> Signup and view all the answers

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