The diagram below shows how a biofuel called ethanol is produced.
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Sample Response
The diagramdigram delineatesdelinates the production of a sustainable biofuel, ethanol. Overall, the diagram illustrates a closed-loop system with 9 essential stages of biofuel production.
The process commences with the growth of plants and trees, which require energy derived from the combination of sunlight and carbon dioxide. After this, the plants and treesthe plants and the trees are harvested. The harvested material then undergoes a pre-processing stageAlready harvested product undergoes pre-processing stage, where it is crushed into small particles in specialized equipmentusing a modern technology. The following stageFollowing stage includes turning them into cellulosea cellulose. Sugars are extracted from the produced cellulose, and microbesessential microbes are added in order to turn it into ethanolan ethanol.
At the final stage of the process, the produced ethanol is usedproduced ethanol is used for operating various means of transportation, namely cars, trucksvans and even planes. TheirThere constant usage causes the emission of carbon dioxide into the atmospherein the air, which is used by naturethe nature for completing the same process of ethanol production in an ongoing cycleall over again.
Why this response received Band 7.0
The essay successfully describes the stages of the cyclical process from plant growth to carbon dioxide release, including a clear overview. However, minor inaccuracies in stage count and minor grammatical or lexical slips are present. Focusing on precise article usage, correct possessive spelling, and accurate data counting will elevate overall performance.
IELTS Writing Criteria Scores
Task Achievement
The main steps of the process are well covered, and a clear cyclical overview is provided.
Ensure precise details by double-checking counted stages and avoiding unsupported claims like modern technology.
Coherence and Cohesion
Information is organized logically with sequential paragraphing and appropriate transition signals.
Use a wider variety of cohesive devices to connect stages more smoothly across paragraphs.
Lexical Resource
Vocabulary is generally appropriate for describing processes, though occasional spelling mistakes occur.
Proofread carefully to fix typos like digram and delinates.
Grammatical Range and Accuracy
Complex structures are attempted, but minor errors in article usage, agreement, and homophones reduce precision.
Pay attention to article usage with uncountable nouns and ensure correct spelling of possessive pronouns such as their.