The diagram gives information about the process of production biofuel called ethanol.
Overall, It is made of trees followed by multiple harvesting and processing steps and finally reaching the point where different types of vihicles produce carbon dioxide which is mandatory for trees.
The first step is for trees to receive energy and grow by spunging sunlight and carbon dioxide. After that they are harvested by machines, which deliver plants to the pre-processing station where they are cut into small pieces. In addition, cellulose then added to get them ready for the next stages.
After that, in a lavoratory, processing begins, so that the sugars and the microbes added in the last place. Ethanol now is ready and the vehicles are getting their tanks fueled with it. They start evaporating carbon dioxide required for the very first step of this process. It shows that the production of biofuel is cycled.
