What kinds of problems will we face, if the number of vehicles keep on increasing? 

Have you ever collected dry wood or made cow dung cakes?

Suggest some ways to save oil.

What would happen if you don’t get petrol or diesel for a week in your village or town?

Where is diesel used?

Where all is oil used?

Why are the prices of petrol and diesel going up?

Suggest some ways to deal with the problems arising out of the growing number of vehicles.

Manju said, “why doesn’t everyone use a bus?” What do you think, why don’t people travel by buses?

Besides oil, what else is found deep inside the earth?

Which states in India have oil fields?