CBSE Class 7 Science Wastewater Story MCQs

CBSE Class 7 Science Wastewater Story MCQs. Revision worksheets, Sample papers, Question banks and easy to learn study notes for all classes and subjects based on CBSE and NCERT guidelines. Students and parents can download free a collection of all study material issued by various best schools in India. The study material has been carefully compiled by the best teachers in India. The students should practice the questions database to get better marks in examination. Please refer to other links for free download of high quality study material. Based on CBSE and NCERT guidelines. Based on the same pattern as released by CBSE every year. Study material for final/ term/ SA1/ SA2 Examinations conducted by various schools affiliated to Central Board of Secondary Education (CBSE) in India and abroad. CBSE Study material has been compiled to help students preparation which will helps the students to concentrate more in areas which carry more marks.

Wastewater Story

1.  The  increasing scarcity of fresh water is due to 

a.  Population growth b.  Pollution c.  Industrial development 

d.  All of the above

2.  Liquid waste consisting of suspended impurities is called

a.  Contaminant  b.  Sewage c.  Aeration d.  Chlorination

3.  WWTP stands for 

a.  Waste Water Therapy Plant  b.  Waste Water Treatment Plant

c.  Waste Water Travel Plant    d.  Waste Water Tremendous Plant

4.  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

5.  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

6.  Water borne disease is

a.  Diabetes b.  Cancer  c.  Appendicitis  d.  Cholera

7.  A resource much needed for soil is

a.  Septic Tank b.  Chemical Toilet  c.  Vermi- Processing Toilet d.  Composing pits

8.  “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 

9.  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

10. Find the one which is a dried –up river

a.  Godavari  b.  Ganga c.  Mahanadi  d.  Arveri  e.  k in colour 



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