All are primary pollutants except

1.	All are primary pollutants except
Answer» <html><body><p>`SO_2`<br/>`H_2SO_4`<br/>`NO_2`<br/><a href="https://interviewquestions.tuteehub.com/tag/particular-1147539" style="font-weight:bold;" target="_blank" title="Click to know more about PARTICULAR">PARTICULAR</a> matter</p>Answer :<a href="https://interviewquestions.tuteehub.com/tag/b-387190" style="font-weight:bold;" target="_blank" title="Click to know more about B">B</a></body></html>

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