Major sources of NOx pollutants are? A. Natural gas B. Combustion of coal and oil C. Gasoline D. All of these Right Answer: D. All of these Share : December 13, 2017 Hassan Ali Chemistry Total 0 Votes: 0 0 Tell us how can we improve this Mcqs? Captcha: + = Verify Human or Spambot ? Related Mcqs Check Below -The contact process was first developed by?When an unknown primary alcohol gives yellow precipitates of iodoform, it is most likely to be?What sis the colour of Mn+2?