State one use each of the following products of petroleum :
(a) Petroleum gas
(b) Petrol
(c) Diesel
(d) Lubricating oil
(e) Bitumen
Name the petroleum product used to drive heavy vehicles.
Which of the following is the most environment friendly fuel to be used in automobiles?
(a) petrol
(b) diesel
(c) natural gas
(d) petroleum gas