CHAPTER-18, POLLUTION OF AIR AND WATER

1. Boojho wishes to contribute in reducing air pollution. Which vehicle should he use for going to school?

 
 
 
 

2. The type of pollution which is likely to affect Taj Mahal in Agra to a greater extent is

 
 
 
 

3. Highest percentage of air consists of

 
 
 
 

4. Potable water is the water which is

 
 
 
 

5. Which of the following gases combines with the blood and prevents it from carrying oxygen?

 
 
 
 

6. A pond contains clean water. Which of the following activities will produce least pollution of water?

 
 
 
 

7. Biological pollution in water is caused by

 
 
 
 

8. Air is a mixture of various gases. One of the gas is 21% part of the air and is essential for the survival of human beings. This gas is

 
 
 
 

9. Which of the following is not a way to conserve water?

 
 
 
 

10. The Kyoto protocol is associated with one of the following.

 
 
 
 

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