Question

To clean their spectacles, people often breathe out on glasses to make them wet.explain why the glasses become wet?

Answer 1

The breathe out gases contain water vapour. The water vapour condenses at spectacles so glass become wet and with help of some small amount of water , it is easy to clean spectacles.

Answer 2

Explanation:

The breathe out gases contain water vapour. The water vapour condenses at spectacles so glass become wet and with help of some small amount of water , it is easy to clean spectacles.