https://www.khanacademy.org/science/telangana-class-8-science/x17f7017799a605d2:combustions-fuels-and-flame/x17f7017799a605d2:structure-of-flame/e/structure-of-flame 2026-04-08T01:15:04.085520103Z Structure of Flame Lets answer some questions Shankar R exercise