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Subject :NSO    Class : Class 5

When oxides of nitrogen and sulphur react with water vapour in the air they cause __________.

A Ozone depletion
B Global warming
C Acid rain
D Oil spill


Ans 1:

Class : Class 7
Globallllllllllllllll warminggggggggg

Ans 2:

Class : Class 4
nitrogen and sulphur are not greenhouse gases so NOT global warming

Ans 3:

Class : Class 7
Global warming

Ans 4:

Class : Class 8
cccccccccc

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