Question

give reasons for the following : a) Camphor disappears if kept in air for a few days b) wet clothes do not dry easily on a rainy day c) so wet on humid day

Answer 1

a) camphor disappears when kept in air because of sublimation that means in sublimation solid directly change to gas without changing in liquid vice versa same happen in camphor as it is solid nd it change to gas and disappears.  
c) on humid day it is so wet because on humid day air is already saturated with water so sweat evaporates much slowly from our body that results in so wet on humid day

Answer 2

Hiii Anushka,

------Here is your answer dear------
a) It is so happen due to the process of Sublimation.
☆Sublimation ☆
it is the process through which a solid become gaseous directly.

b) Wet clothes do not dry easily on a rainy day because of Humidity in air.

c) Clothes, so wet on humid day due to the presence of much more moisture and water droplets in air.

Hope it will help you!
Thanks!