POLLUTION (AIR & WATER)

1. What do you understand by pollution? Name any three pollution that we commonly hear of? Why

are these pollutions harmful to us? Explain.

2. Clear, transparent water is always fit for drinking. Comment.

3. What are the different ways in which water gets contaminated?

4. Can hot water be a pollutant? Justify your response.

5. What is potable water? What percent of total water is potable water?

6. Discuss the ways in which water can be purified?

7. 25% of the worlds population is without safe drinking water what does this statement mean?

Should it be a cause of concern to us? What should we do in this regard?

8. What are the factors responsible for pollution of the river? How would the disposal of garbage,

etc., affect the living organisms in the river?

9. What is Ganga Action Plan?

10. How does the increased level of nutrients in the water affect the survival of aquatic organisms?

11. You are a member of the municipal body of your town. Make a list of measures that would help

your town to ensure the supply of clean water to all its residents.

12. What is air? Mention its various constituents. Why is it important for us?

13. Explain the differences between pure air and polluted air.

14. What are the different ways in which air gets contaminated?

15. What is smog? When is it usually observed? What are its harmful effects?

16. What are CFCs? Why are these harmful to us?

17. What is ozone? How is it different from oxygen?

18. Ozone is a poisonous gas, it can cause death. Then in what way it is good for us?

19. What do you understand by acid rain? How is it cause?

20. What do you mean by marble cancer?

21. Give the comparative account for the quality of air at these places: (i) a park and a busy road; (ii)

a residential area and an industrial area; (iii) a busy traffic intersection at different times of the

day e.g. early morning, afternoon and evening; (iv) a village and a town.

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22. Discuss the various threats to the beauty of the Taj Mahal. What are the steps taken by the

Supreme Court of India to save the Taj Mahal?

23. At an individual level, how can you help reduce air pollution?

24. What is greenhouse effect? What are greenhouse gases (GHGs)? Name all the GHGs.

25. Make a brief report on global warming stating what it is, how it happens, why it is happening,

what are the consequences, what we should do etc.

26. What do you understand by Van Mahotsav?

27. In what manner you would dispose dry leaves in order to avoid pollution?

28. Discuss the principle of 3 Rs Reduce, Reuse and Recycle in preventing pollution.

BP's

Aca

dem

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(942

2031

727

/ 909

6989

707)