The diagram below shows how biofuel called ethanol is produced
The picture illustrates ethanol, which is a type of biofuel, is being produced and used for diverse reasons in particular areas. Overall, there are 14 small stages of processing, from generating energy from the sunlight to usage of carbon dioxide for certain reasons, such as for transportation.
To start with, the light from the sun extracts carbon dioxide, then provides energy to grow plants; after that, crops are harvested and sent to pre-processing. Another stage is to convert everything into cellulose before sending chemical laboratory for processing. From there all elements that are used in the laboratory are converted into sugar, and it is combined with microbes for special purposes.
When it comes to Ethanol, it is used for particular reasons, for example, it is used in almost all modes of transportation, including airplanes, Tracks, and cars as a source of energy. Finally, carbon emission that comes from transports reproduce carbon dioxide.
The essay presents the process in a somewhat logical order but lacks clarity and cohesion. Transitions between stages are not always clear, and there is some repetition.
Suggestions
- Use clearer transitions between stages.
- Avoid unnecessary repetition.
- Ensure each stage is clearly described.
The essay uses a range of vocabulary related to the topic, but there is occasional repetition and some words are used inaccurately.
The essay demonstrates a limited range of grammatical structures with some errors in sentence construction and agreement.
The essay addresses the task but lacks detail in describing the process and its stages. Some key stages are not fully explained.
Suggestions
- Include more details about each stage of the process.
- Ensure all key stages from the diagram are covered.
- Clarify the role of carbon dioxide in the process.