Global Water Resources Quiz
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Questions and Answers

What proportion of the earth's surface is covered by water?

  • About 66% (correct)
  • More than 50%
  • Less than 25%
  • More than 75%

    • Why is most of the available freshwater inaccessible?

  • Government restrictions
  • Lack of technology to extract it
  • It is locked in deep aquifers and glaciers (correct)
  • Due to contamination

    • What is the process of obtaining freshwater from seawater called?

  • Filtration
  • Desalinization (correct)
  • Rehydration
  • Condensation

    • What is the primary reason for water scarcity in some countries according to the text?

    <p>Economic scarcity</p> Signup and view all the answers

    Which African country is described as the 'water tower of east Africa'?

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

    What is the definition of safe drinking water?

    <p>Water that may contain impurities but does not pose significant health risks over a lifetime</p> Signup and view all the answers

    Why can aquatic plants live in water?

    <p>Because sunlight can reach them as water is transparent in the visible spectrum</p> Signup and view all the answers

    What are hydrophilic substances?

    <p>Substances that dissolve in water, like salts, sugars, acids, and alkalis</p> Signup and view all the answers

    What are the functions of water mentioned in the text?

    <p>Water is a solvent for the uptake and transport of materials and is a reactant in many biochemical reactions</p> Signup and view all the answers

    What are some impurities found in safe drinking water mentioned in the text?

    <p>Magnesium, calcium, carbonates, and bicarbonates</p> Signup and view all the answers

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