Gas

Gas is one of the three states of matter. The coal-gas is the product produced from the distillation of coal or any other carbonaceous matter. Check the overview of gas at Climatarians. The natural gas is considered as the safest, cleanest and the most useful among all energy sources. The word ‘gas’ has numerous definitions and uses. For example, if we want to put fuel in our car, we usually say we put gas in it.