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 illustrates the way in which a biofuel called

ethanol

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is created.

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there are three main stages: harvesting plants and trees, creating cellulose, and adding microbes to sugars to produce

ethanol

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. In the first stage, plants and trees which have absorbed sunlight and carbon dioxide, are cut down and harvested by tractor.

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this

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, the fragments are sent to a pre-processing machine which creates strands of cellulose. Once the strands have been created, they are

then

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processed with chemicals where they break down into sugars. In terms of making

ethanol

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and CO2, as soon as the sugars from the processing stage have been formed, microbes are added in order to make

ethanol

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on a large scale.

This

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biofuel is

then

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ready to be used in cars, trucks, and aeroplanes, which in turn emits carbon dioxide and

this

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then

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goes back into the atmosphere where the process repeats itself.