The process below illustrates how biofuels emerged from plants and trees. Overall, it can be seen that there are almost 10 stages in that process, and the end users of the ethanol are transportation.
Firstly, plants became the initial raw material for biofuel. People harvest the trees before distributing them for pre-processing. The next stage is called cellulose, and then it is ready for processing until chemists add microbes to the sugar. As a result, ethanol is produced.
There are three types of users for biofuels, including cars, trucks, and planes. They can be the cause of the release of carbon dioxide into the environment. Moreover, both sunlight and carbon dioxide can be the energy needed to grow plants and trees. Eventually, this process rotates again, starting from the first step.
In conclusion, ethanol emerged from natural sources like trees. Although cars, trucks, and planes produce carbon dioxide, it can have a good effect on the growth of plants. Therefore, carbon dioxide has its advantages despite having bad effects sometimes.