EASY
4th CBSE
IMPORTANT
Earn 100

Define underground water.

Important Questions on Air, Water and Weather

MEDIUM
4th CBSE
IMPORTANT
How is fog formed? 
MEDIUM
4th CBSE
IMPORTANT

Draw labelled diagrams of Sedimentation and Decantation.

MEDIUM
4th CBSE
IMPORTANT

Draw labelled diagram of Filtration.

MEDIUM
4th CBSE
IMPORTANT
Why do water drops collect on a cold water bottle kept outside the refrigerator?
MEDIUM
4th CBSE
IMPORTANT
You can see your breath when you blow air from your mouth, on a very cold day. Why?
MEDIUM
4th CBSE
IMPORTANT
Match the following
Column A Column B
a. Weather change i. Cloud formation
b. Boiling water ii. Night
c. Land breeze iii. Vapourisation
d. Condensation iv. Day
e. Sea breeze v. Sun
EASY
4th CBSE
IMPORTANT
Choose the answer from the bracket to fill the blank.
The sun rays fall _____ on the earth during noon time. (directly/slantly).