Science

7th

grade

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Waste-water Story

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20 questions

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  • 1. Fill in the Blank
    20 seconds
    1 pt

    ______________________ is a process in which the waste-water is purified and cleaned before it enters any water body.


    (Please write answer in CAPITAL letters)

    Hint : It contains the word cleaning in it

  • 2. Fill in the Blank
    20 seconds
    1 pt

    What is the term given to waste water discharged by homes, hospitals, hotels, restaurants etc.


    (Please write answer in CAPITAL letters)

  • 3. Multiple Choice
    20 seconds
    1 pt

    How many people do not have access to clean drinking water in the world ?

    1 billion

    2 billion

    50 million

    25 million

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