Question

Why do we get dew on the surface of soft drink bottle kept in open air?

Answer 1

This is because the water vapour present in the atmosphere gets condensed when it comes in contact with the cold surface of the bottle

Answer 2

we know that air contain water vapour.when we keep a cold soft drink bottle in contact with air, it condenses the water vapour and it can be seen on the surface of the bottle as water droplets.