Movement of Groundwater
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Questions and Answers

What makes sand different from clay in terms of water absorption?

  • Sand is both porous and permeable. (correct)
  • Sand is not permeable but is highly porous.
  • Sand is not porous but is highly permeable.
  • Sand is neither porous nor permeable.

    • How does limestone differ from clay and sand in terms of water absorption?

  • Limestone is not permeable but very porous.
  • Limestone is very permeable but not very porous. (correct)
  • Limestone is both permeable and very porous.
  • Limestone is neither permeable nor porous.

    • What happens to limestone as water is absorbed into it?

  • It becomes less porous.
  • It becomes harder.
  • It becomes less permeable.
  • It becomes more porous. (correct)

    • Why are most of the world's aquifers made of limestone?

    <p>Because limestone becomes more porous as it absorbs water.</p> Signup and view all the answers

    What causes groundwater movement?

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

    What determines the direction of groundwater flow according to the text?

    <p>The elevation of the water table</p> Signup and view all the answers

    How does groundwater move through the soil according to the text?

    <p>By flowing through open pores in the soil</p> Signup and view all the answers

    What makes groundwater movement slower than surface water movement according to the text?

    <p>The hydraulic gradient</p> Signup and view all the answers

    How does groundwater compare to surface water in terms of movement through soil pores?

    <p>Groundwater moves through open pores while surface water doesn't</p> Signup and view all the answers

    What property of sand allows it to absorb water quickly?

    <p>Its high porosity</p> Signup and view all the answers

    How does limestone differ from sand in terms of porosity and permeability?

    <p>Limestone is porous but not permeable</p> Signup and view all the answers

    Why does groundwater move from high to low elevation?

    <p>Due to the hydraulic gradient</p> Signup and view all the answers

    How does the movement of groundwater differ from surface water movement?

    <p>Surface water moves through open pores in the soil</p> Signup and view all the answers

    What effect does water absorption have on limestone according to the text?

    <p>It creates new holes, making it more porous</p> Signup and view all the answers

    Which sediment is described as having a high water-holding capacity but taking a long time to absorb water?

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

    What makes sand different from clay and limestone in terms of water absorption?

    <p>Sand has high porosity and high permeability</p> Signup and view all the answers

    What characteristic of groundwater movement sets it apart from surface water movement?

    <p>Moving through open pores</p> Signup and view all the answers

    What factor determines the direction of groundwater flow in the text?

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

    Why is limestone considered a tricky sediment in terms of water absorption according to the text?

    <p>It absorbs water quickly but has low capacity</p> Signup and view all the answers

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