The diagram illustrates the production of a type of a biofuel named ethanol. Overall, it can be inferred from the diagram that the process showcases three primary stages; preparation, production and usage. The process necessities special machinery.
The initial step in the process is carbon dioxide in the atmosphere mixes with sunlight forming energy, allowing vegetation to flourish. Once they are grown, they are harvested with mechanical assistance. After they are taken to the factory, a special machine grounds them into small chunks, creating cellulose.
Moving on to the production phase, work commences by processing earlier cellulose generating sugar molecules. Microbes are then added to sugars ultimately forming ethanol. The process is cyclical, once transportation emits CO2 back to the atmosphere, using produced ethanol, the cycle will repeat itself.