Question

Why do we see vapor when we breath out in winter???

Answer 1

In winter our breath is warm and moist.when you exhale it outside the water vapor in your breath is at a higher concentration than the cold outside air can handle so it condenses into water vapour.

Answer 2

It is because the air present in our mouth is warmer than the air in the surrounding . So when it comes in contact with cold air it condenses and changes into vapour. ....:)