MEDIUM
4th CBSE
IMPORTANT
Earn 100

Why do we feel very sticky and uncomfortable when the air is humid?
Important Questions on Air, Water and Weather
MEDIUM
4th CBSE
IMPORTANT
Why do our clothes dry quickly on sunny days?

MEDIUM
4th CBSE
IMPORTANT
What is chlorination? Name any two chemicals other than chlorine that can be added to kill germs present in water.

MEDIUM
4th CBSE
IMPORTANT
What is the difference between land breeze and sea breeze?

MEDIUM
4th CBSE
IMPORTANT
How does the Sun cause the winds to blow?

MEDIUM
4th CBSE
IMPORTANT
The water purifier at your home suddenly stops working. How will you purify the water so that no germs are left in it?
