SEARCH Articles Figures Tables Adenosine triphosphate as an energy source Combustion in Micro Channels as Energy Source for Fuel Processors Electrochemical processes as sources of energy Energy sources Energy sources source FOSSIL FUELS ARE A WIDELY USED BUT LIMITED ENERGY SOURCE Fossil fuels as energy source Fuels as Sources of Energy Glucose as energy source Hydrogen as energy source Inorganic reactions as energy source Nuclear Fusion Is a Potential Source of Clean Energy Old Tires—A Clean Source of Energy Oxidation as a metabolic energy source Protein Synthesis and Proteins as Energy Source Solar radiation as energy source Using the Nucleus as a Source of Energy