HARD
8th CBSE
IMPORTANT
Earn 100

Name the variety of coal which has the lowest carbon content.

Important Questions on Model Test Paper-1

MEDIUM
8th CBSE
IMPORTANT
What is petroleum gas? State two uses of this gas. 
MEDIUM
8th CBSE
IMPORTANT
Which zone of a flame is used by goldsmiths to make gold ornaments and why? 
MEDIUM
8th CBSE
IMPORTANT
Is rusting of iron a process of combustion? Give reasons for your answer.
MEDIUM
8th CBSE
IMPORTANT

State two conditions necessary for combustion.

MEDIUM
8th CBSE
IMPORTANT
What do you understand by the terms: endangered species?
MEDIUM
8th CBSE
IMPORTANT
 What do you understand by the terms: endemic species?
MEDIUM
8th CBSE
IMPORTANT
Why are the given structures important to a plant cell: cell wall?