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Quiz: How well do you know this water world?

It is no secret that we live on a planet that is mostly covered with water. Just look at a satellite photo of earth and you will quickly get the message – planet earth is a water world but not to be confused with the 1995 movie Waterworld staring Kevin Costner. Bodies of water, living things and beings, liquids all have water in varying degrees. Most importantly, this odorless, tasteless and mostly colorless substance is essential to life on earth and is a driving force in world economies. Water can appear in three states; liquid(which is referred to as water), solid(frozen water) and gas. Test your knowledge on water with this quiz. Have fun!


Some images courtesy Pixaby. Other images are mine.


  • Question /

    Water is a chemical substance

    • True
    • False
  • Question /

    How much of the earth’s surface is covered by water?

    • 52%
    • 84%
    • 71%
  • Question /

    Water is composed of which of these two elements?

    • Hydrogen and Nitrogen
    • Nitrogen and Sodium
    • Hydrogen and Carbon
  • Question /

    How many children do you believe die every hour from unsafe drinking water?

    • About 600
    • About 200
    • About 150
  • Question /

    What percentage of the human brain is water?

    • 50%
    • 90%
    • 70%
  • Question /

    How long can a human be expected live without water?

    • A week
    • 3 days
    • 10 days
  • Question /

    Which of these items use the most water (about 3,000 gallons) to produce

    • A gallon of wine
    • A pound of chocolate
    • A pound of beef
  • Question /

    About 68% of the world’s fresh water is trapped here

    • Underground
    • In glaciers
    • In the oceans
  • Question /

    A tree is made up of this much water

    • 25%
    • 52%
    • 75%
  • Question /

    It is the largest ocean on earth

    • The Indian Ocean
    • The Pacific Ocean
    • The Atlantic Ocean
  • Question /

    Drinking excessive amounts of water can cause this

    • Hypertermia
    • hyperhydration
    • dehydration
  • Question /

    Ocean tides are the result of these occurrences

    • a) the rotation of the earth
    • b) the gravatationla pull of the moon and sun on the water
    • c) all of the above
  • Question /

    Can you name the longest River in the world?

    • The Amazon
    • The Nile
    • The Yangtze
  • Question /

    Water can flow upwards in tubes against the force of gravity. What is the term for this action?

    • Capillary
    • Ancillary
    • Antigravity
  • Question /

    What is the ph level of pure water?

    • 7
    • 6
    • 5


What do you think?

16 points

Written by Gloridaze

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