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Subject :NSO    Class : Class 4

Study the given diagram carefully. Activities occurring at which place could cause water pollution and acid rain respectively?

--------Water pollution------Acid Rain
AP and Q------------------S and U
BS and U------------------Q, R and T
CQ and R------------------S and T
DS and R------------------P, Q and U

Ans 1:

Class : Class 9

Ans 2:

Class : Class 7

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