Disaster Management: Hazards and Disasters
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Questions and Answers

What is the main cause of a debris flow?

  • Removal of buttressing earth at the foot of a slope
  • Slope becoming saturated with water (correct)
  • Sudden heavy rain
  • Loosening of rock on the slope
  • What type of sinkhole occurs in areas where limestone is exposed at land surface or covered by thin layers of soil and permeable sand?

  • Artificial sinkhole
  • Dissolution sinkhole (correct)
  • Cover subsidence sinkhole
  • Cover collapse sinkhole
  • What is the function of a conduit in a volcano?

  • To connect the magma chamber to the surface (correct)
  • To form the crater
  • To store magma
  • To emit steam and gas
  • What is the characteristic shape of a shield volcano?

    <p>Broad and gently sloping</p> Signup and view all the answers

    What is the term for the downward movement of rock debris?

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

    What is a necessary condition for a hazard to be considered a disaster?

    <p>It occurs in a populated area</p> Signup and view all the answers

    What type of hazard arises from the interaction of natural processes and human activities?

    <p>Quasi-Natural Hazard</p> Signup and view all the answers

    What is an example of a Technological Hazard?

    <p>Accidental leak of a chemical laboratory</p> Signup and view all the answers

    What is Soil Creep?

    <p>A very slow downslope movement of particles</p> Signup and view all the answers

    What is Geologic Hazard?

    <p>An extreme natural event in the crust of the earth that poses a threat to life and property</p> Signup and view all the answers

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