Chapter 13: Importance of Water - Science Mcqs for Grade 7


Q.  Oil can be poison for

a. insect's life
b. aquatic life
c. animal's life
d. human life


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  As compare to normal water the concentration of oxygen in hot water is
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MCQs:  When people do not have enough water for washing hands and body, a disease is spread. This disease is known as
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MCQs:  The maximum percentage of water in a plant or animal is
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MCQs:  Desalinated and distilled water is mostly used in
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MCQs:  In best water treatment works, water is pumped from
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MCQs:  A food item which is wasted most, is
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MCQs:  The disease formed due to the drinking of water containing bacteria and viruses is known as
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MCQs:  The soil and sand is settled at the bottom in
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MCQs:  Crops grow well when they are
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MCQs:  If we don't drink water, we will eventually
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MCQs:  The largest ocean covers about
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MCQs:  Scientists believe that eight out of ten people in under developed countries suffer from diseases due to ?
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MCQs:  Trachoma is caused due to the presence of
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MCQs:  In snowy regions, most of the fresh water is in the form of
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MCQs:  Untreated sewage should not be pumped into
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MCQs:  The water bodies smaller than oceans are known as
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MCQs:  For desalination plant, the first priority is
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MCQs:  Whether we obtain tap water or water from well, it originally comes from
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MCQs:  For drinking, distilled water is
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MCQs:  In country area, untreated sewage is pumped into tanks known as
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