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 provided diagram illustrates the multi-stage process involved in the production of

ethanol

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, a type of biofuel.

Overall

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, their is eleven steps to create the

ethanol

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. It can be divided into two different parts. The first one is the natural and physical transformation , and the other step is the chemical part. From stages one to six,

Ethanol

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comes from trees. Trees and plants grow with the energy provided by sunlight and by carbon dioxide. After their growth, plants will be harvested , and humans will keep the seeds coming from the plants.

This

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is called Pre-processing.

As a result

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, the Cellulose extract from the pre-process will create fuel with the help of a chemical change. The second part,

that is

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, stages even to eleven, will be the processing. The Cellulose that comes from seeds is going to be changed into sugars by chemical processes. When Sugars are created, humans will add Microbes , resulting in fuel.

Thus

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, people can make use of

this

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fuel to fill their cars and other means of transport. Aeroplanes and cars will release tons of Carbon Dioxide , which will go back to be used by trees to grow , and in

this

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manner, closing the cycle of

Ethanol

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manufacturing.