EASY
9th CBSE
IMPORTANT
Earn 100

State two ill effects of global warming.

Important Questions on Natural Resources

EASY
9th CBSE
IMPORTANT
State the role of respiration in ‘Oxygen Cycle’.
EASY
9th CBSE
IMPORTANT
What do you mean by biogeochemical cycle? State its characteristics.
EASY
9th CBSE
IMPORTANT
What do you understand by ammonification? Name two bacteria involved in the process.
EASY
9th CBSE
IMPORTANT
How is gaseous nitrogen fixed by the plants? What is its significance?
MEDIUM
9th CBSE
IMPORTANT
Explain carbon cycle and its role in our ecosystem.
MEDIUM
9th CBSE
IMPORTANT
Draw a well labelled diagram to show carbon cycle in nature.
MEDIUM
9th CBSE
IMPORTANT
State in brief the role of photosynthesis and respiration in carbon-cycle in nature.
EASY
9th CBSE
IMPORTANT
Define Greenhouses.