On a very cold morning, Boojho and Paheli were talking with each other as they walked down to their school. They observed that the air coming out of their mouth looked like smoke. They were amused and wondered how it happened. Help them find the answer.
This is a very common observation. On any cold day we can observe the air exhaled by us turning into white smoke. This is because the air exhaled by us is moist and warm and as soon as it comes in contact with the cold atmospheric air it turns into white smoke.