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Process Diagram

Band 8+: Biofuel production: how ethanol is made. Write at least 150 words.

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Image for topic: Biofuel production: how ethanol is made. Write at least 150 words.

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The image illustrates ethanol production from biofuel starting with energy (sunlight + carbon dioxide) aiding plant/tree growth; this is followed by harvesting, and pre-processing which releases carbon dioxide; processing involves breaking down cellulose into sugars; microbes are added to convert sugars into ethanol; ethanol is used as a fuel, releasing carbon dioxide again in the process.

Given the complexity of the image, the above description may not be entirely accurate.

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The diagram illustrates the process by which ethanol biofuel is produced.

Overall, ethanol is manufactured through a cyclical process that begins with plant growth using sunlight and carbon dioxide and ends with the fuel being consumed by vehicles, which release carbon dioxide back into the atmosphere.

Initially, plants and trees grow by absorbing sunlight and carbon dioxide. Once mature, they are harvested and undergo a pre-processing stage, after which cellulose is extracted. This cellulose is then processed into sugars, and microbes are added to ferment the sugars, resulting in the production of ethanol.

In the final stage, ethanol is used as a biofuel in various forms of transport, including cars, trucks, and aircraft. The combustion of ethanol releases carbon dioxide, which returns to the atmosphere and is reused during plant growth, completing the cycle.

Word Count: 134

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Overall Band Score

8.5

(+/- 0.5)

Vocabulary Complexity:
C2 - Complex
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Grammar Mistakes: N/A

Vocabulary Repetition:

which: 4

ethanol: 4

carbon: 4

dioxide: 4

Try using synonyms for the above words

Task Response

The report comprehensively and accurately describes the process of ethanol biofuel production, covering all key stages from plant growth to the release of carbon dioxide. The description is clear, well-organized, and demonstrates a strong understanding of the cyclical nature of the process. The writing is fluent and effectively addresses the task requirements. The report falls short of the required 150 words.

Coherence & Cohesion

The report presents a clear and logical description of the ethanol production process. The cyclical nature of the process is well-emphasized, and the paragraphing effectively separates the stages. The use of cohesive devices makes the text flow smoothly and effortlessly.

Lexical Resource

The report demonstrates a wide range of vocabulary related to the topic, used accurately and appropriately. Terms like 'cyclical process,' 'pre-processing stage,' 'cellulose is extracted,' and 'ferment the sugars' showcase a sophisticated control of lexical features.

Grammatical Range & Accuracy

The report exhibits a wide range of grammatical structures used with full flexibility and control. The sentences are well-constructed, and punctuation is accurate throughout. The absence of grammatical errors contributes to the overall clarity and effectiveness of the report.

Answers On The Same Topic:

Biofuel production: how ethanol is made. Write at least 150 words.

The given figure illustrates the creation cycle of a biofuel known as ethanol. Overall, the figure demonstrates how ethanol is being made, which is then used as a biofuel in modern vehicles. It begins with energy which goes all the way to the harvesting, pre-processing and multiple other procedures to finally become Ethanol which is […]

Band 6+

Biofuel production: how ethanol is made. Write at least 150 words.

The process diagram delineates the data of manufacturing process of making ethanol. In an overall perspective, producing ethanol is a cyclic process. which has seven stages commencing with growing trees & plants and terminates with consuming by vehicles and forming carbon dioxide which is lastly utilised by plants again. To begin with, in production of […]

Band 5+

Biofuel production: how ethanol is made. Write at least 150 words.

[17:55, 12/8/2025] Sara Piriyeva: The diagram illustrates the cyclical process which detail how biofuel ethanol manufactured. Looking from an overall perspective, the 9 steps process begins with absorption of carbon dioxide by plants, continued chemical processing and ends with the emission of the carbon dioxide In the first step, energy, sunlight and carbon dioxide, in […]

Band 5+

Biofuel production: how ethanol is made. Write at least 150 words.

The diagram below depicts the process-making of biofuel called ethanol from raw plant materials. Overall, biofuel production is a whole recycle process. It involves several stages, starting with absorbing energy using resources from plants and trees and ending with final fuel that can be distributed to customers. First, sunlight and carbon dioxide was being absorbed […]

Band 6+

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Band 8+: Biofuel production: how ethanol is made. Write at least 150 words.

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Task Response

Coherence & Cohesion

Lexical Resource

Grammatical Range & Accuracy

Answers On The Same Topic:

Biofuel production: how ethanol is made. Write at least 150 words.

Biofuel production: how ethanol is made. Write at least 150 words.

Biofuel production: how ethanol is made. Write at least 150 words.

Biofuel production: how ethanol is made. Write at least 150 words.

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