Natural gas is a combustible gas or a gas that burns easily, which is formed in the same way as crude oil. Since natural gas is lighter than crude oil, it is often found above the deposits of crude oil, in the form of a cap. Methane is the main component of natural gas which is made up of different gases. Natural gas itself is colourless, odourless, and lighter than air and it burns at a temperature of approximately 600°C. It is offset with an artificial smell, faintly resembling that of rotten eggs. This warns us against the explosive gas when a gas pipeline leaks.