MEDIUM
9th CBSE
IMPORTANT
Earn 100
In agricultural practices, higher input gives higher yield. Discuss how?
Important Questions on Sample Question Paper
HARD
9th CBSE
IMPORTANT
The mass of one steel screw is 4.11g. Find the mass of one mole of these steel screws. Compare this value with the mass of the Earth ().Which one of the two is heavier and by how many times?
MEDIUM
9th CBSE
IMPORTANT
In photosynthesis, 6 molecules of carbon dioxide combine with an equal number of water molecules through a complex series of reactions to give a molecule of glucose having a molecular formula . How many grams of water would be required to produce 18 g of glucose? Compute the volume of water so consumed assuming the density of water to be .
MEDIUM
9th CBSE
IMPORTANT
Explain giving reasons
A balanced diet is necessary for maintaining a healthy body.
MEDIUM
9th CBSE
IMPORTANT
Explain giving reasons
Health of an organism depends upon the surrounding environmental conditions.
MEDIUM
9th CBSE
IMPORTANT
Explain giving reasons
Our surrounding area should be free of stagnant water.
EASY
9th CBSE
IMPORTANT
Explain giving reasons
Social harmony and good economic conditions are necessary for good health.
MEDIUM
9th CBSE
IMPORTANT
Why is AIDS considered to be a ‘Syndrome’ and not a disease?
EASY
9th CBSE
IMPORTANT
Explain the meaning of inertia with the help of an example.
