Wastewater Story MCQs with answers
Dear candidates you will find MCQ questions of 7th Class - Science | Chapter: Wastewater Story here. Learn these questions and prepare yourself for coming examinations. You can check the right answer of any question by clicking the option or by clicking view answer button.
All subjects and chapters of 7th Class are listed below. You can select any subject and chapter below to learn mcq questions of that chapter and subject.
Q. Which one of the following is a step in wastewater treatment?
✅ Correct Answer: (D)
All of these
Q. Sludge in separate tanks is decomposed to get biogas by
✅ Correct Answer: (C)
anaerobic bacteria
Q. Which of the following is wastewater?
✅ Correct Answer: (D)
Water coming out of a laundry
Q. Which one of the following is a quality of wastewater?
✅ Correct Answer: (D)
All of these
Q. Which process removes the solids like foeces and other substances from the waste water
✅ Correct Answer: (D)
sand and grit removal
Q. Sanitation in the cities is the function of
✅ Correct Answer: (A)
Municipal corporation
Q. Which of the following is a part of inorganic impurities of the sewage?
✅ Correct Answer: (C)
Phosphates
Q. The process of removing pollutants in water before it enter a water body is called
✅ Correct Answer: (A)
cleaning of water
Q. Excreta from the toilet seats flow through covered drains into a chemicals
✅ Correct Answer: (B)
biogas plant
Q. The period of International Decade for action on ‘Water for Life’ is
✅ Correct Answer: (B)
2005 – 2015
Q. Period 2005-2015 is being celebrated as the international decade for action on
✅ Correct Answer: (A)
water for life
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