What is Petroleum. Give the characteristics of petroleum. [3 MARKS]
Petroleum : 1 Mark
Characteristics : 2 Marks
Petroleum, also called crude oil, is a thick and black liquid. It is a natural material mainly made of hydrocarbons.
It has an unpleasant odour. It is a mixture of various constituents such as petroleum gas, diesel, lubricating oil, paraffin wax, etc.