You should spend about 20 minutes on this task. The diagram below shows how a biofuel called ethanol is produced. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The illustration demonstrates the cycle of manufacturing a biofuel called ethanol. Overall, there are nine steps employed in the process, starting with energy being absorbed by plants and trees, followed by the conversion of energy into cellulose and ending with the produced ethanol being used by various types of vehicles. The first four stages aim […]