Earth's Water and the Water Cycle Quiz
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Questions and Answers

Why are oceans salty?

  • As a result of rivers carrying salts and minerals from land to the oceans (correct)
  • From underground aquifers releasing salty water into the oceans
  • Because the sun evaporates saltwater leaving salt behind in the oceans
  • Due to excessive rainfall dissolving minerals from soil and rocks into the oceans

    • What is the primary source of energy for the water cycle?

  • Geothermal heat
  • The sun (correct)
  • Wind
  • Ocean currents

    • How can a water supply be extended?

  • By building more dams
  • By recycling or using less water (correct)
  • By increasing desalination plants
  • By redirecting rivers to areas in need

    • What is the function of an aquifer?

    <p>To allow the flow of groundwater through layers of rock and soil</p> Signup and view all the answers

    Which type of precipitation results from ice crystals melting when falling through warmer air?

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

    Where does most of California get its water from?

    <p>Northern Coastal Region</p> Signup and view all the answers

    What type of clouds are thin, white, and wispy at high altitudes?

    <p>Cirrus clouds</p> Signup and view all the answers

    How does freezing rain form?

    <p>Rain forms as ice crystals in cold clouds, melts while falling, then refreezes before hitting the ground.</p> Signup and view all the answers

    Why do people in California need to conserve water?

    <p>To maintain sufficient water supply during droughts</p> Signup and view all the answers

    Which of the following is NOT mentioned as a way to conserve freshwater?

    <p>Collecting and using rainwater</p> Signup and view all the answers

    What type of clouds are low-altitude, dark, and block most sunlight?

    <p>Stratus clouds</p> Signup and view all the answers

    What is the main reason that oceans become salty?

    <p>Runoff of salty water from land</p> Signup and view all the answers

    Which of the following is NOT a way that freshwater is used on Earth?

    <p>Generating electricity</p> Signup and view all the answers

    What is the primary source of energy that drives the water cycle?

    <p>The sun</p> Signup and view all the answers

    Which of the following is NOT one of the steps in the water cycle?

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

    What is the function of an aquifer?

    <p>All of the above</p> Signup and view all the answers

    Which type of precipitation results from ice crystals falling through cold air and partially melting?

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

    What is the primary mechanism by which clouds form?

    <p>Water vapor condensation</p> Signup and view all the answers

    Which of the following types of clouds is associated with thunderstorms?

    <p>Thunderheads clouds</p> Signup and view all the answers

    What is the sequence of events that leads to the formation of freezing rain?

    <p>Freezing, melting, refreezing</p> Signup and view all the answers

    Which of the following is NOT mentioned as a way to conserve freshwater in the text?

    <p>Collecting rainwater</p> Signup and view all the answers

    Why do people in California need to conserve water?

    <p>California has experienced droughts</p> Signup and view all the answers

    How do oceans become salty?

    <p>Through the dissolution of salts and minerals carried by rain from land</p> Signup and view all the answers

    What is the primary form of precipitation that results from ice crystals falling through cold air and partially melting?

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

    Why is freshwater important to the Earth?

    <p>For drinking, cooking, cleaning, growing crops, and making electricity</p> Signup and view all the answers

    What provides the energy required for the water cycle?

    <p>The sun</p> Signup and view all the answers

    What is an aquifer according to the text?

    <p>The layer of rock and soil where groundwater flows through</p> Signup and view all the answers

    How can a water supply be expanded or prolonged according to the text?

    <p>By conserving water and recycling</p> Signup and view all the answers

    What type of crystals melt as they fall through warmer air?

    <p>Ice crystals in rain</p> Signup and view all the answers

    What type of clouds are likely to cause thunderstorms?

    <p>Thunderheads Clouds</p> Signup and view all the answers

    When do freezing raindrops melt according to the text?

    <p>When falling down</p> Signup and view all the answers

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