Geology for Engineers: Weathering and Erosion
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Questions and Answers

What is the main process involved in freeze-thaw weathering?

  • Water seeping into cracks and freezing (correct)
  • Expansion and contraction due to heat
  • Chemical reactions with rainwater
  • Water reacting with minerals in rocks
  • Where does exfoliation weathering typically occur?

  • Cold deserts
  • Coastal areas
  • Tropical rainforests
  • Mountainous regions (correct)
  • Which environment is most conducive to physical weathering?

  • Urban areas with concrete structures
  • Coastal regions with dense vegetation
  • Mountain regions with little soil (correct)
  • Tropical rainforests with abundant plants
  • What type of chemical reaction causes hydrolysis in rocks?

    <p>Reaction of anything with water</p> Signup and view all the answers

    In which regions does chemical weathering primarily occur?

    <p>Regions with acidic rainwater</p> Signup and view all the answers

    What is the difference between erosion and weathering?

    <p>Erosion involves the movement of rock material, while weathering does not involve rock material removal.</p> Signup and view all the answers

    What type of weathering involves the breakdown of rock by acidic water to produce clay and soluble salts?

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

    Which process is responsible for the breakdown of rock by oxygen and water, often giving iron-rich rocks a rusty-colored weathered surface?

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

    What is the main agent of transport in physical weathering?

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

    In chemical weathering, which type involves the removal of rock in solution by acidic rainwater?

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

    What type of physical weathering is caused by the effects of changing temperature on rocks?

    <p><strong>Physical Weathering</strong></p> Signup and view all the answers

    Which of the following is an example of physical weathering?

    <p>Roots of trees growing through cracks in rocks</p> Signup and view all the answers

    What is an example of a type of chemical weathering mentioned in the text?

    <p>Acid rain attacking rock types</p> Signup and view all the answers

    Which process involves the down-slope movement of loose rock and soil due to gravity?

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

    Which of the following is an example of biological weathering?

    <p>Chemicals produced by bacteria breaking down rocks</p> Signup and view all the answers

    What type of physical weathering is characterized by rock falls like the one at Beachy Head?

    <p>Landslides without warning after heavy rain</p> Signup and view all the answers

    Which process involves the roots of trees gradually prizing the rock apart as they grow?

    <p>Acid rain attacking rock types</p> Signup and view all the answers

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