Regarding CNG

compressed natural gas, or CNG. It is a combination of hydrocarbons, primarily Methane, and is a gaseous fuel. It is compressed to a pressure of 200–250 kg/cm2 for use as fuel in automobiles in order to increase the storage capacity on board the vehicle.CNG is a fossil fuel that may be used in place of other car fuels like gasoline, diesel, auto LPG, etc.