11. Which of the following air pollutant affect the nervous system of man

1. 1. Lead

   
   
   

   2. Cadmium

   
   
   

   3. Mercury

   
   
   

   4. Sillica

   
   
   

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   NA

   Correct Option: A

   NA

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12. Which of the following is non-biodegradable pollutat

1. 1. Plastic

   
   
   

   2. DDT

   
   
   

   3. Murcury

   
   
   

   4. All of them

   
   
   

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   NA

   Correct Option: D

   NA

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13. Atmosphere of big metropolition cities is polluted most by

1. 1. Automobile exhausts

   
   
   

   2. Pesticides residue

   
   
   

   3. Household waste

   
   
   

   4. Radio active fall out

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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14. Which of the following produce maximum sound pollution

1. 1. Top music

   
   
   

   2. Heavy truck

   
   
   

   3. Jet flight

   
   
   

   4. None of these

   
   
   

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   NA

   Correct Option: C

   NA

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15. National Environmental Engineering research institute is situated in

1. 1. Ranchi

   
   
   

   2. Cuttak

   
   
   

   3. Jamesdpur

   
   
   

   4. Nagpur

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

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