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Subject :NSO    Class : Class 8

Which of the following statements is incorrect?

ACFCs released from refrigerators and aerosols damage ozone layer.
BExcess of carbon monoxide in the atmosphere causes global warming.
CPotable water is suitable for drinking.
DPolluted water bodies have higher BOD.

Ans 1:

Class : Class 9
Answer is wrong B can also be the answer

Ans 2: (Master Answer)

Class : Class 1


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