Carbon in nature, resulting from the accumulationFossil deposits below the skin of the world. For a long time, until there is a change of condition, as coal and petroleum, which are the energy sources for parent.
Carbon in nature, caused by the accumulation of sediments, fossil beneath the surface. As long as there is a change. Coal and petroleum This is a major energy source
Carbon in nature caused by accumulation.The fossil of sediment below the earth"s surface For a long time and has changed into a coal and petroleum, which is the source of power.