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IELTS Free Online Writing Practice - Is ocean acidification reversible?

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IELTS Writing Task 2 Topic: Is ocean acidification reversible?

Model Answer:

In recent years, ocean acidification has emerged as a significant concern due to the increasing levels of carbon dioxide in the atmosphere. The question arises whether this process is reversible or not. To address this issue, it is essential to understand the factors contributing to ocean acidification and analyze the potential solutions that can mitigate its adverse effects.

Ocean acidification occurs as a result of the absorption of carbon dioxide (CO2) by seawater, which leads to the formation of carbonic acid. This process alters the ocean's chemistry, making it more acidic and less capable of absorbing CO2. The increased acidity has severe consequences for marine life, particularly organisms with calcareous shells or skeletons, such as corals, mollusks, and some types of plankton.

There are several factors to consider when examining the possibility of reversing ocean acidification. Firstly, the rate at which human activities release CO2 into the atmosphere is critical. If these emissions continue unabated, it becomes increasingly difficult for natural processes to counteract the effects of ocean acidification. Secondly, the ability of ecosystems to adapt and recover depends on their resilience and the rate of change in ocean conditions. Thirdly, the potential solutions available to address ocean acidification include reducing CO2 emissions, enhancing carbon sinks, and promoting the development of more resistant marine species through selective breeding or genetic engineering.

In conclusion, while it is theoretically possible to reverse ocean acidification by mitigating CO2 emissions and implementing adaptive measures, the complexity of the issue and the numerous factors involved make it a challenging endeavor. The effectiveness of these efforts will largely depend on global cooperation and the commitment of nations to reduce their carbon footprint.

Overall, this essay demonstrates a strong understanding of the topic and presents a coherent argument. It effectively discusses the causes and consequences of ocean acidification and critically examines the potential solutions that could address this issue. The essay is well-structured, with clear introduction, body paragraphs, and conclusion, which are characteristic of a high-level IELTS Writing Task 2 response. Therefore, based on the IELTS scoring standards, this essay would likely receive a Band Score of 9.

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