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Subject :NSO    Class : Class 9

Which of the following activities will not lead to both air and water pollution?

A Burning of fossil fuels
B Use of CFCs
C Use of pesticides in crop fields
D Setting up of a chemical factory near water body


all options may be correct

Ans 1:

Class : Class 9
All are correct

Ans 2:

Class : Class 9
B

Ans 3:

Class : Class 10
All option are wrong.

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