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.
Social Sciences. Compressed natural gas (CNG) conversion kits allow a mechanic to convert a conventional gasoline car to one that runs on the CNG. Although the process is complex, it is not necessarily difficult and quite do-able. And if you are mechanically inclined, it could feasibly be done in your own garage.