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

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

Model Answer:

Ocean acidification is a significant environmental issue that has far-reaching consequences for marine life. This essay will explore the various ways in which ocean acidification affects marine ecosystems, as well as the potential consequences for human societies.

Firstly, ocean acidification threatens the survival of many marine organisms due to its impact on their ability to form shells and skeletons. Calcifying organisms such as corals, mollusks, and some types of plankton rely on calcium carbonate to build their exoskeletons or shells. When the ocean's acidity increases, it becomes more difficult for these creatures to produce enough calcium carbonate to maintain their structures, leading to a decline in the population of these species.

Secondly, ocean acidification disrupts the balance of marine food chains. Many predatory fish and other animals rely on calcifying organisms as a primary food source. As these organisms suffer due to increased acidity, so too does the broader marine ecosystem. This can result in a ripple effect that extends up the food chain, potentially leading to significant disruptions in the overall health of marine environments.

Moreover, ocean acidification poses challenges for the human societies that depend on healthy marine ecosystems for their livelihoods and sustenance. Fisheries and aquaculture industries are particularly vulnerable, as changes in marine species populations can lead to shifts in available food sources and disruptions in the productivity of these industries.

In conclusion, ocean acidification is a major threat to marine life due to its impact on calcifying organisms' ability to form shells and skeletons, the disruption of marine food chains, and the challenges it presents for human societies that rely on healthy oceans for their livelihoods. As we continue to explore and understand the full extent of this issue, it becomes increasingly important to develop and implement effective strategies to mitigate its effects and protect our world's oceans.

Overall, the essay is well-structured with a clear introduction, body paragraphs that address the various aspects of the topic, and a conclusion that summarizes the main points. The language used is generally appropriate for the IELTS exam, although some more complex vocabulary could be added to improve the overall score. The grammar and punctuation are mostly accurate, with only a few minor errors.

Based on the IELTS scoring standards, this essay would likely receive a Band Score of 7 or higher due to its clear organization, appropriate language use, and accurate grammar and punctuation.

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