Question

People who wear glasses we noticed that her glasses fog up when they come in doors on a cold day why does this happen

Answer 1

Water vapor cools down when it touches the lenses, the cold lenses cause a phase change as the warm vapor touches them and turns into a liquid.

Step-by-step explanation:

Answer 2

Because it is a lot warmer inside so all of the cold air starts to evaporate on her glasses

Step-by-step explanation:

Hope this helps