• What type of mineral fuels in the form of shale. The organic material called kerogen (Kerogen) campsites
• caused by the deposition of humus that is rotting away due to low oxygen
• Sax is a polysaccharide polymer. Offers of hot sax polysaccharide polymer which is composed of grain Starz
• Natural gas is formed from the lead. Natural gas is mostly methane
•. It is a type of charcoal Rigid and high gloss Carbon is the highest among all charcoal