Which of the following is a secondary air pollutant ?#sscmcq #sscquestions #latestsscmcq - Study24x7
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Which of the following is a secondary air pollutant ?

#sscmcq #sscquestions #latestsscmcq

A

Carbon mono oxide

B

Sulphur di oxide

C

Ozone

D

Carbon di oxide

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