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IELTS Free Online Writing Practice - Discuss the impact of ocean acidification on marine life.

IELTS.WORK Free Online Writing Practice # 1712259419

IELTS Writing Task 2 Topic:"Discuss the impact of ocean acidification on marine life."

Model Answer:

Ocean acidification is a serious environmental concern that has far-reaching effects on marine life and ecosystems. This phenomenon, caused by increased levels of carbon dioxide in the atmosphere dissolving into seawater, has led to a reduction in pH levels and an increase in hydrogen ions, which disrupt the delicate balance of marine habitats.

The most immediate impact of ocean acidification is on calcifying organisms, such as shellfish, coral, and some types of plankton. As the acidity of seawater increases, these creatures struggle to build and maintain their calcium carbonate shells and skeletons. This not only hampers their growth but also makes them more susceptible to predation and physical damage from water currents.

Moreover, ocean acidification disrupts the food chain in marine ecosystems. As calcifying organisms decline in number and size, the species that rely on them as a source of food are adversely affected. This can lead to a ripple effect throughout the food chain, causing imbalances in predator-prey relationships and potentially resulting in the extinction of certain species.

In addition to these direct impacts, ocean acidification also indirectly affects marine life by altering the behavior of fish and other marine creatures. For example, research has shown that fish exposed to more acidic waters are less likely to respond to predators or reproduce successfully. This can have a profound effect on populations over time, as well-adapted individuals become less common in affected areas.

Overall, the impacts of ocean acidification on marine life are multifaceted and far-reaching. While it is difficult to predict the full extent of these effects, it is clear that continued efforts must be made to mitigate carbon emissions and protect our oceans from further harm. The health of marine ecosystems and the biodiversity they support depend on proactive and sustainable management strategies.

In terms of IELTS scoring standards:

- Task Response (1-4): 5/5 - The candidate has provided a comprehensive response to the question, covering all aspects of the topic. The answer is detailed and well-structured, demonstrating a good understanding of the issue.
- Coherence and Cohesion (1-4): 5/5 - The candidate's response flows logically and smoothly from one point to another, with appropriate transitions and coherence throughout. The writing demonstrates clear and effective organization.
- Lexical Resource (1-4): 5/5 - The candidate uses a wide range of vocabulary and expressions related to the topic. There are no significant errors in word choice or usage, and the text is varied and engaging.
- Grammatical Range and Accuracy (1-4): 5/5 - The candidate's grammar is largely accurate and advanced throughout the response, with only minor errors that do not impact comprehension. Sentence structure and punctuation are used correctly and effectively.
- Spelling (1-4): 5/5 - There are no spelling mistakes in the response, demonstrating a high level of accuracy.

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