Natural gases such as biogas, ethane, methane can be obtained from the microbial process. It is necessary to use or increase this because it is man-made and natural gas so it is eco-friendly as well as cheaper than other fuels and also it is a renewable source and for fuels.methane can be obtained by microbial anaerobic decomposition of urban agricultural and industrial waste. Ethanol, an alcohol is a clean (smokeless) fuel obtained during fermentation of molasses by the yeast- Saccharomyces.
