The process shows the design of a modern landfill for household waste.
Sample Response
The diagram illustrates the three-stage process by which a modern landfill for household waste is constructed, operated, and ultimately sealed.
Overall, the facility is engineered to contain domestic refuse while capturing liquid leachate and decomposition gases, thereby protecting the underlying natural rock from contamination. The sequence progresses through excavation and lining, waste deposition, and final closure with gas extraction. In the construction phase, a cavity is excavated into natural rock, then lined with clay and a synthetic liningmembrane to form an impermeable barrier. At the base of this lining, drainage pipes feed into a drainage tank designed to collect waste liquidtank designed to collect leachate. During operation, lorries deposit household waste into the lined cavity. As refuse accumulates, liquid seeps through the drainage pipes into the tank below. In the final closure stage,At closure, the full landfill is sealed with a clay covercapped with clay. Here, the piping function shifts from liquid management to gas control: a pipe extending deep into the waste masspipes embedded in the cap safely vent gases emitted from the decomposing wastemethane and other gases generated as waste anaerobically decomposes.
Why this response received Band 9.0
The essay presents an exceptionally clear, detailed, and accurate breakdown of the process diagram, demonstrating total command of task requirements. Ideas flow logically through distinct paragraphs with seamless transitional phrasing and flawless sequencing. To maintain this level of excellence, continue applying this precise structural organization and sophisticated technical vocabulary across various prompt types.
IELTS Writing Criteria Scores
Task Achievement
All stages and components of the landfill process are described with complete accuracy, supported by a comprehensive clear overview.
Maintain this high standard by ensuring equally accurate feature selection in complex data charts or maps.
Coherence and Cohesion
Paragraphing and cohesive devices are used effortlessly to guide the reader through the construction, operational, and closure phases.
Continue utilizing paragraph-level topic transitions to sustain natural logic in longer academic responses.
Lexical Resource
A wide range of sophisticated technical vocabulary is applied with full precision and natural flexibility throughout.
Sustain this level of precision by choosing exact domain-specific terminology for varied Task 1 visual materials.
Grammatical Range and Accuracy
Grammar and sentence structures are completely error-free, exhibiting advanced flexible control over passive structures and complex clauses.
Keep practicing varied complex sentence patterns to ensure consistent accuracy across all essay topics.
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IELTS Academic Writing Task 1
The process shows the design of a modern landfill for household waste.
Your response
Write the task yourself, then compare your choices with the annotated response.