7th Class Science Wastewater Story Question Bank Wastewater Story

  • question_answer DIRECTIONS: Read the following two statements carefully and choose the correct options. (i) Waste water is treated in a sewage treatment plant. (ii) Cleaning of water is a process of removing the pollutants before polluted water is reused. (iii) There are organic as well as inorganic impurities in water.

    A) Statements (i) and (iii) are incorrect but (ii) is correct.

    B) Statements (i) and (ii) are incorrect but (iii) is correct.

    C) All statements are correct.

    D) All statements are incorrect.

    Correct Answer: C

    Solution :

    All statements are correct.

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