In air pollution the amount of oxygen—–and carbon dioxide—–.A. Increase, decreaseB. Decrease, increaseC. Increase, increaseD. No effect 0 0 votesArticle Rating Subscribe LoginNotify of new follow-up commentsnew replies to my comments Label {} [+] Name* Email* Website Label {} [+] Name* Email* Website 0 Comments Oldest Newest Most Voted Inline FeedbacksView all comments