Water on Earth: Exploring Its Distribution
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Questions and Answers

What portion of the Earth's surface is covered in water?

  • 50%
  • 60%
  • 80%
  • 71% (correct)
  • What is the primary characteristic of water that allows it to dissolve more substances than any other liquid?

  • Hydrogen bonds (correct)
  • Adhesive properties
  • Cohesive properties
  • Its chemical formula H2O
  • What percentage of the Earth's water is freshwater?

  • 15%
  • 10%
  • 5%
  • 2.5% (correct)
  • What is the primary component of saltwater?

    <p>Sodium chloride</p> Signup and view all the answers

    What is the first step in the process of the water cycle?

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

    What is the term used to describe the ability of water to form bonds with other water molecules?

    <p>Cohesive properties</p> Signup and view all the answers

    What happens to the water vapor as it rises into the upper atmosphere?

    <p>It condenses and transforms back into tiny water droplets</p> Signup and view all the answers

    What is the primary role of water in the ecosystem?

    <p>To provide the lifeblood of the community</p> Signup and view all the answers

    What is the main purpose of transpiration in plants?

    <p>To release excess water vapor into the atmosphere</p> Signup and view all the answers

    What is the primary function of water in the human body's temperature regulation?

    <p>To regulate body temperature through sweating and respiration</p> Signup and view all the answers

    What is one of the ways to conserve water?

    <p>To invest in water-saving appliances</p> Signup and view all the answers

    What happens to the water droplets in the clouds when they become too heavy to remain suspended in the air?

    <p>They merge together to form larger droplets or ice crystals</p> Signup and view all the answers

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