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  • Which of the following statements is correct ?  1) Benzene hexachloride (BHC) is a non - biodegredable pollutant 2) Anthropogenic air pollutants are natural in origin&

Which of the following statements is correct ? 

1) Benzene hexachloride (BHC) is a non - biodegredable pollutant

2) Anthropogenic air pollutants are natural in origin 

3) Carbon monooxide is a primary air pollutant 

4) Sulphur dioxide causes brown air effect during traffic congestion in cities 

Option: 1

1 and 3 


Option: 2

1 and 2 


Option: 3

2 and 3 


Option: 4

2 and 4 


Answers (1)

best_answer

 

 

As we have already discussed in Description of Air Pollutants from Man made Sources -

 

 

Primary air pollutants -

Air is polluted by poisonous gases and undesirable substances. They are released by burning fossil fuels. These substances are called primary air pollutants.

- wherein

The primary air pollutants are the following:

- Soot released from unburned fuel.

   - Sulphur dioxide (SO2).

   - Benzopyrene (hydrocarbon) released from cigarette smoke.

   - Ammonia (NH3).

   - Oxides of nitrogen.

   - Carbon monoxide (CO).

   - Lead (Pb).

Also , BHC cannot degraded by microbes therefore, falls under non-biodegradable categry. 

Hence, the correct option is (a). 

 

 

Posted by

Ritika Harsh

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