The given picture shows the how Ethanol is produced which is biofuel.
The ethanol is cause by the following steps. the energy created by sunlight and carbon dioxide is used by the plants and trees to grow and after that it is harvested. people use tractor for harvesting ,after harvesting it is send to the pre-processing where they use machinery to do that after that we get the cellulose which is a chemical substance and after that it is send to that processing where the sugar is created. The process of cellulose to sugar is done at labs using chemicals and after sugar is formed then microbes are added to it by which ethanol is generated.
Ethanol is used by different transport like car, truck and aeroplane by which they work.
Using ethanol vehicles can move and while it is moving carbon dioxide is released which is again going back to form energy with sunlight and this whole process to produce ethanol start again.
Overall, The ethanol is use for the moving to vehicles and the made of ethanol consist of different steps. This ethanol process is a cycle process.
