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 diagram depicts the production of a biofuel namely

ethanol

, which

involve

Correct subject-verb agreement

involves

show examples

three important stages including the pre-processing, processing, and post-processing stage. In the pre-processing stage, harvesting is done to obtain plants and trees as the source of basic materials.

Then

, they will enter a machine that transforms them to become cellulose.

Next,

in the processing phase, they are converted into sugars through the process of the chemical reaction. Following that, in the post-processing step, some microbes are added to the previous chemical which makes it become the final product called

ethanol

.

Finally

, it can be used to run various modes of transportation which emit carbon dioxide into the air that becomes the source of energy that plants and trees use to grow.

Lastly

,

this

process will repeat continuously to keep producing

ethanol

.

To conclude

, the process of

ethanol

production is a complex one

that is

capital intensive.