1. What happens to the surface of the mirror in winters ?
a) It becomes moist and hazy.
b) Water vapour does this.
c) Oxygen supply is adequate.
d) None of these.
![1 What happens to the surface of the mirror in winters a It becomes moist and hazyb Water vapour does thisc Oxygen supply is adequated None of these class=](https://us-static.z-dn.net/files/d82/6d28e087f015a20bdf8dcbe04a0b2391.jpg)