Like the millipedes, centipedes are highly segmented (15 to 177 segments), but with only one pair of walking legs per segment (millipedes have two legs per segment). The head of a centipede has a pair of antennae, jaw-like mandibles (called forcipules) and other mouthparts.
Although compressed natural gas (CNG) is a fossil fuel like diesel, gas and coal, it is far different in terms of its impact on the natural environment.
Liquefied Petroleum Gas - Propane LPG â Liquefied Petroleum Gas â describes flammable hydrocarbon gases including propane, butane and mixtures of these gases. LPG, liquefied through pressurisation, comes from natural gas processing and oil refining. LPG is used as heating, cooking and auto fuel.