Question

in order to clean their spectacles people often breathe out on glasses to make them wet explain why the spectacles glasses become wet​

Answer 1

Because when we exhale, we exhale out CO2 as well as water vapour... this vapour condenses to become wet when it touches the spectacles

Answer 2

Explanation:

To clean the spectacles people often breath out on glasses to make them wet because when we exhale we exhale out CO2 as well as water vapour.this vapour condenses to become wet when it touches the spectacles.