Question

Show a poster for the importance of coal and petroleum

Answer 1

petrol is one of the fuels Earlier, it was used in cars, bick, trucks, etc..

Answer 2

Coal and petroleum are called fossil fuels. Coal and petroleum are the natural resources which are important 'sources' of energy for us. Coal is used as a fuel as such in homes and in industry, or it is used to generate electricity at Thermal Power Plants.