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Waste water Story Test - 9

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Waste water Story Test - 9
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Weekly Quiz Competition
  • Question 1
    1 / -0
    Which of the following is waste water?
    Solution
    Discharged water during household activities or in industries is considered to be wastewater. 
    Thus, the correct option is (d).
  • Question 2
    1 / -0
    Which of the following is a part of inorganic impurities of the sewage?
    Solution
    • Phosphate or phosphorus is an inorganic component and hence, it is considered an inorganic impurity in sewage.
    • Urea, pesticides, and vegetable waste all are organic.
    So, the correct option is C.
  • Question 3
    1 / -0
    The system of a network of pipes used for taking away wastewater from homes or public buildings to the treatment plant is known as
    Solution
    Sewerage is the system applied in buildings for discharging wastewater to the sewage. It is a network of pipes, known as sewers, connected together. 
    Thus, the correct option is (b) sewerage.
  • Question 4
    1 / -0
    Water polluted by various human activities causes a number of water borne diseases. Which of the following is not a water borne disease?
    Solution
    Asthma is a respiratory disorder in which a patient is allergic to allergens present in air like pollen grains or dust.
    Cholera, Typhoid, and Dysentry - are bacterial waterborne diseases, caused by polluted water.
    Thus, the correct option is (c).
  • Question 5
    1 / -0
    Three statements are provided here which define the terms - Sludge 

    Pick out the correct definition for these terms. 
    Solution
    Sludge - It is the collection of settled solids that are removed in wastewater treatment with a scraper.
    So, the correct answer is (a).
  • Question 6
    1 / -0
    What is sewage?
    Solution
    Sewage is the wastewater released from homes, industries, hospitals, and other public buildings. It also includes rainwater that has run down the street during a storm or heavy rain. The water that washes off roads and rooftops carries harmful substances with it. Sewage is liquid waste. Most of it is water, which has dissolved and suspended impurities called contaminants.
    So, the correct answer is option C.
  • Question 7
    1 / -0
    Three statements are provided here which define the terms - Wastewater

    Pick out the correct definition for these terms. 
  • Question 8
    1 / -0
    Why is it important to drink clean water?
    Solution
    • Clean water is essential in humans for proper nourishment. Human body consists of 60% of water and is responsible for maintaining the health of organs.
    • It prevents the exposure to diseases such as cholera, diarrhea and typhoid.
    • Clean water devoid of pollutants is necessary for the growth of healthy crops as these absorbs nutrients from both soil and water provided.
    • Hence, Option D is correct.
  • Question 9
    1 / -0
    Which of the following factors increases the scarcity of freshwater?
    Solution
    The increasing scarcity of freshwater is due to population growth, increase in pollution, industrial development, mismanagement of water resources such as rivers, seas and other water bodies.
    Hence, Option D is correct.
  • Question 10
    1 / -0
    World Water Day is observed every year on _____.
    Solution
    World water day is observed every year on 22 March.
    Option A is correct.
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