Geological Cross Section and Induced Recharge Quiz
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Questions and Answers

What percentage of the earth's water is readily available for human use?

  • Over 50%
  • Around 10%
  • Between 25-30%
  • Less than 1% (correct)
  • Which geological formations store and allow slow movement of groundwater?

  • Slate
  • Sandstone (correct)
  • Shale
  • Limestone
  • What refers to the measure of the void spaces in a material?

  • Permeability
  • Porosity (correct)
  • Hydraulic conductivity
  • Saturated zone
  • What is the geological term for the top of the zone of saturation?

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

    Which type of soil has the most rapid permeability?

    <p>Coarse-textured sandy &amp; gravel soils</p> Signup and view all the answers

    What is the most common mode of contaminant migration in the subsurface with groundwater?

    <p>Advective flow with groundwater</p> Signup and view all the answers

    Which method can be used to increase the accuracy of the geologic cross section model?

    <p>Using well cuttings</p> Signup and view all the answers

    What is the term for the stretching of the cone of depression to nearby water bodies such as lakes or streams?

    <p>Induced recharge</p> Signup and view all the answers

    What is the purpose of using appropriate vertical and horizontal scales when constructing a geologic cross section profile?

    <p>To enlarge the cross section to see additional detail</p> Signup and view all the answers

    What represents discrete points of knowledge about the subsurface geology in a geologic cross section profile?

    <p>Geologic information from each well bore</p> Signup and view all the answers

    What can be used to help understand geologic conditions that occur in specific areas of a geologic cross section?

    <p>Driller’s logs</p> Signup and view all the answers

    In the context of constructing a geologic cross section profile, what can be used to guide in selecting the appropriate scales?

    <p>Deciding what the geologic cross section is going to be used for</p> Signup and view all the answers

    What type of lines should be used to indicate uncertainty or inferred data in a geologic cross section profile?

    <p>Dotted lines</p> Signup and view all the answers

    What is the purpose of incorporating a legend into a geologic cross-section profile?

    <p>To explain the types of geologic materials present</p> Signup and view all the answers

    Under the BC Groundwater Protection Regulation, what must be done at the end of the service life of a water well?

    <p>It must be properly deactivated and ultimately closed</p> Signup and view all the answers

    What role do groundwater wells play according to the BC Groundwater Protection Regulation?

    <p>They are used by industries to meet water needs</p> Signup and view all the answers

    What is the purpose of a surface seal in groundwater wells according to the BC Groundwater Protection Regulation?

    <p>To prevent contaminants from entering the well from the surface or shallow subsurface zone</p> Signup and view all the answers

    What should be used to indicate reasonably certain relations between discrete data points on a geologic cross section profile?

    <p>Solid lines</p> Signup and view all the answers

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