Why should we used unleaded petrol in motor vehicles ?

Why is it desirable to use unleaded petrol in vehicles fitted with catalytic converters?

Why should we save paper?

Read the following five statements (A to E) and select the option with all correct statements: (A) Motor vehicles equipped with catalytic converter should use unleaded petrol. (B) Proper maintenance of automobiles along with use of lead-free petrol or diesel can reduce the pollutants they emit. (C) According to Central Pollution Control Board (CPCB), particulate size 10 micrometers or less in diameter are responsible for causing the greatest harm to human health. (D) Catalytic convertres, having expensive metals namely platinum-palladium and rhodium as the catalysis, are fitted into automobiles for reducing emission of poisonous gases. (E) In India, the Air (Prevention and Control of Pollution) Act came into force in 1987.

List two advantages of the use of unleaded petrol in automobiles as fuel.

Why should we conserve minerals ?