Refer to CBSE Class 7 Science Wastewater Story MCQs provided below. CBSE Class 7 Science MCQs with answers available in Pdf for free download. The MCQ Questions for Class 7 Science with answers have been prepared as per the latest syllabus, CBSE books and examination pattern suggested in Class 7 by CBSE, NCERT and KVS. Multiple Choice Questions for Chapter 18 Wastewater Story are an important part of exams for Class 7 Science and if practiced properly can help you to get higher marks. Refer to more Chapter-wise MCQs for CBSE Class 7 Science and also download more latest study material for all subjects
MCQ for Class 7 Science Chapter 18 Wastewater Story
Class 7 Science students should refer to the following multiple-choice questions with answers for Chapter 18 Wastewater Story in Class 7. These MCQ questions with answers for Class 7 Science will come in exams and help you to score good marks
Chapter 18 Wastewater Story MCQ Questions Class 7 Science with Answers
Wastewater Story
Question. The increasing scarcity of fresh water is due to
(a) Population growth
(b) Pollution
(c) Industrial development
(d) All of the above
Answer: D
Question. Liquid waste consisting of suspended impurities is called
(a) Contaminant
(b) Sewage
(c) Aeration
(d) Chlorination
Answer: B
Question. WWTP stands for
(a) Waste Water Therapy Plant
(b) Waste Water Treatment Plant
(c) Waste Water Travel Plant
(d) Waste Water Tremendous Plant
Answer: B
Question. Cooking oil and fats should not be thrown down the drain because
(a) They flow through the drain freely
(b) It allows the particles to get filtered
(c) They harden and block the pipe
(d) They break the pipe
Answer: C
Question. Better housekeeping practices includes
(a) Cooking oil and fats should not be thrown down the drain
(b) Chemicals like paints, solvents, insecticides should not be thrown the drain
(c) Used tea leaves,solid food , cottonshould not be thrown in the drain
(d) All of the above
Answer: D
Question. Water borne disease is
(a) Diabetes
(b) Cancer
(c) Appendicitis
(d) Cholera
Answer: D
Question. “By providing clean water and sanitation to the poorest people on the planet, we can reduce poverty and suffering and ensure education for all children.” The above words are given by
(a) UNO
(b) UNICEF
(c) UNESCO
(d) WHO
Answer: B
Question. The technique of watering plants by making use of narrow tubings which deliver water directly at the base of the base of the plant is
(a) Lawn sprinkling
(b) Tube wells
(c) River-lift irrigation
(d) Drip irrigation
Answer: D
Question. Find the one which is a dried –up river
(a) Godavari
(b) Ganga
(c) Mahanadi
(d) Arveri e. k in colour
Answer: D
Question. Which of the following is a part of inorganic impurities of the sewage?
(a) Excreta
(b) Garbage
(c) Phosphate
(d) Vegetable waste
Answer: C
Question. Period 2005-2015 is being celebrated as the international decade for action on
(a) water for life
(b) education for all
(c) global war
(d) terrorism
Answer: A
Question. Which of the following is wastewater?
(a) Water trickling from a damaged tap
(b) Water coming out of a shower
(c) Water flowing in a river
(d) Water coming out of a laundry
Answer: D
Question. Biodegradable wastes are generally
(a) Blended
(b) Synthetic
(c) Organic
(d) Inorganic
Answer: C
Question. The full form of WWP is
(a) World Wide Transport Programme
(b) Waste Water Treatment Plant
(c) World Worker Talent Programme
(d) None of these
Answer: B
Question. When waste water is passed through bar screens in WWTP, it removes
(a) plastic packets
(b) sand
(c) grit
(d) All of the above
Answer: A
Question. In vermi-processing toilet the human excreta is treated by
(a) Redworm
(b) Tapeworm
(c) Earthworm
(d) Roundworm
Answer: C
Question. A resource much needed for soil is
(a) septic tank
(b) vermic processing toilet
(c) chemical toilet
(d) composting pit
Answer: B
Question. The impurities present in sewage may consist of
(a) organic substances
(b) inorganic substances
(c) Nutrients
(d) All of the above
Answer: D
Question. Water that is not fit for use is called
(a) clean water
(b) wastewater
(c) both (a) and (b)
(d) none of these
Answer: B
Question. The full form of WWP is
(a) World Wide Transport Programme
(b) Waste Water Treatment Plant
(c) World Worker Talent Programme
(d) None of these
Answer: B
Question. Which of the following is not an inorganic impurity present in sewage?
(a) Nitrate
(b) Phosphorus
(c) Urea
(d) Metal salt
Answer: C
Question. Adding air to treated water is called
(a) Fluorination
(b) Chlorination
(c) Aeration
(d) Oxygenation
Answer: C
Question. An example of source reduction of waste is
(a) Burning
(b) Making paper aero planes
(c) Throwing things that are old
(d) Backward composting
Answer: D
Question. The equipment that removes floatable particles from wastewater is
(a) sludge
(b) bar screen
(c) skimmer
(d) sedimentation tank
Answer: C
Question. Sewage refers to waste water that is released by
(a) homes
(b) industries
(c) offices
(d) All of the above
Answer: D
Question. The process of removing pollutants in water before it enter a water body is called
(a) cleaning of water
(b) refining
(c) filtering of water
(d) none of these
Answer: A
Question. The aerobic bacteria can be grown in clarified water by
(a) filtration
(b) sewage
(c) aeration
(d) sedimentation
Answer: C
Question. Open drain system is a breeding place for which of the following:
(a) Files
(b) Mosquitoes
(c) Organisms which cause diseases
(d) All of these
Answer: D
Question. What is the full form of WWTP?
(a) Waste water travel plant
(b) Wastewater treatment plant
(c) Waste water therapy plant
(d) Waste water tropical plant
Answer: B
Question. Sludge in separate tanks is decomposed to get biogas by
(a) yeasts
(b) aerobic bacteria
(c) anaerobic bacteria
(d) none of these
Answer: C
Question. A network of big and small pipes under the ground for wastewater management is known as
(a) sewage
(b) sewerage
(c) manhole
(d) channel
Answer: B
Question. The network of drainage pipe to carry waste water is called
(a) Sewer system
(b) Water supply system
(c) Drainage
(d) Waste water supply
Answer: A
Question. Select the one that is incorrect for vermin processing toilet.
(a) It is a new method and has been recently tested in India.
(b) It is a novel, low water use toilet that is safe for processing of human waste
(c) In it the human excreta is treated by round worms and cockroaches
(d) In it the human excreta is completely converted to vermi-cakes
Answer: C
Question. Which of the following group is against the plantation of Eucalyptus trees?
(a) Paper manufacturers
(b) Wild life protection group
(c) Environmentalists
(d) Matches manufacturers
Answer: C
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CBSE Class 7 Science Chapter 18 Wastewater Story MCQs
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MCQs for Science CBSE Class 7 Chapter 18 Wastewater Story
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Chapter 18 Wastewater Story MCQs Science CBSE Class 7
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Chapter 18 Wastewater Story CBSE Class 7 MCQs Science
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CBSE MCQs Science Class 7 Chapter 18 Wastewater Story
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