As altitude increases the air pressure:A. IncreasesB. Stays constant at 1 atmC. DecreasesD. Is zero 0 0 votesArticle Rating Subscribe LoginNotify of new follow-up commentsnew replies to my comments Label {} [+] Name* Email* Website Δ Label {} [+] Name* Email* Website Δ 0 Comments Oldest Newest Most Voted Inline FeedbacksView all comments