MEDIUM
8th CBSE
IMPORTANT
Earn 100
Are all microorganisms harmful? Give reasons to justify your answer.
Important Questions on Microorganisms—Friends and Foes
MEDIUM
8th CBSE
IMPORTANT
Describe the uses of microorganisms in the field of medicine.
MEDIUM
8th CBSE
IMPORTANT
Explain the role played by Rhizobium bacteria in increasing the fertility of the soil.
MEDIUM
8th CBSE
IMPORTANT
Why is the idli batter left undisturbed overnight at a warm place? What do we observe when we look at the batter in the morning?
MEDIUM
8th CBSE
IMPORTANT
Describe the nitrogen cycle in nature.
MEDIUM
8th CBSE
IMPORTANT
Why should we be cautious in taking antibiotics? Mention the precautions that need to be taken while taking antibiotics.
MEDIUM
8th CBSE
IMPORTANT
Give reasons for the following.
It is important to drink clean water but it is equally important to have clean water for cleaning the utensils.
MEDIUM
8th CBSE
IMPORTANT
Give reasons for the following.
As many children in the neighbourhood were suffering from dengue, the teacher advised the students to wear full-sleeved shirts and trousers even though it was time to wear summer uniform. Why?
MEDIUM
8th CBSE
IMPORTANT
Give reasons for the following.
The earth would be one big mound of rubbish if there were no bacteria and fungi. Why?
