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Subject :NSO    Class : Class 5

What should a car-driver do to reduce the pollution caused by his car?

ARun car on diesel instead of petrol.
BUse catalytic converter in car.
CTie plastic bag around the exhaust pipe.
DNone of these

Ans 1:

Class : Class 8
Ans:-B] Use Catalytic Converter in car

Ans 2:

Class : Class 5

Ans 3:

Class : Class 6
It should be D as a CATALYTIC CONVERTER releases hydrocarbon which is harmful for the envoirment.

Ans 4:

Class : Class 3

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