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 given graph illustrates the process of producing

ethanol

.

Overall

, it is evident that

ethanol

is made from

plants

and trees after passing through three main procedures; starting from when they are harvested and being processed in labs.

Further

, they will be used as a biofuel by various autos and

then

return in the cycle as carbon dioxide to help

plants

grow again.

To begin

, it can be said that the main sources for producing

ethanol

are trees and

plants

.

Firstly

, they will be harvested;

then

they will be going to be pre-processed and crushed into cellulose afterwards.

Secondly

, processing will be made on them chemically to obtain sugar from them.

Furthermore

, microbes will be added to the sugars in order to transform them into

ethanol

. It is noteworthy to mention that

this

type of fuel is being used by cars, trucks and

also

aeroplanes which make carbon dioxide into the atmosphere;

consequently

, the carbon dioxide with sunlight will be the energy source for

plants

to grow to complete the whole cycle of

ethanol

production’s process.