Research and report:- CNG is modern/growing/popular alternative source of energy. CNG is replacing coal, diesel and petrol/ How is CNG a safe fuel / requires less maintenance. Uses / show distribution on a political map.
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Compressed natural gas is a fuel gas made of natural gas, which is mainly composed of methane (CH4), compressed to less than 1% of the volume it occupies at standard atmospheric pressure. It is stored and distributed in hard containers at a pressure of 20–25 MPa (2,900–3,600 psi), usually in cylindrical or spherical shapes.
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