MEDIUM
9th CBSE
IMPORTANT
Earn 100

Why is the atmosphere essential for life?

Important Questions on Natural Resources
MEDIUM
9th CBSE
IMPORTANT
Why is water essential for life?

MEDIUM
9th CBSE
IMPORTANT
What is the usable form of carbon in the carbon cycle?

EASY
9th CBSE
IMPORTANT
What do you understand by ammonification?

MEDIUM
9th CBSE
IMPORTANT
“Soil is formed by water”. If you agree to this statement then give reasons.

MEDIUM
9th CBSE
IMPORTANT
Fertile soil has lots of humus. Why?

MEDIUM
9th CBSE
IMPORTANT
Why is step farming common in hills?

MEDIUM
9th CBSE
IMPORTANT
Why are root nodules useful for the plants?

MEDIUM
9th CBSE
IMPORTANT
How do fossil fuels cause air pollution?
