Which of the following is/are primary pollutant,, (A) Ozone(B) SO_(2)

1.	Which of the following is/are primary pollutant,, (A) Ozone(B) SO_(2) ""(C) SO_(3) ""(D) NO_(2) "" PBN
Answer» A,C and E B and D A,B and D C,D,E Answer :B

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