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.
China National Petroleum Corporation (CNPC) is China's largest natural gas producer. It reported production of just more than 11 billion cubic feet of natural gas per day in 2014, representing an increase of nearly 10% on the previous year.