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IELTS Free Online Writing Practice - Question Is overfishing the greatest threat to marine ecosystems?

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Question: "Is overfishing the greatest threat to marine ecosystems?"

Model Answer:

Overfishing has emerged as a significant issue threatening marine ecosystems worldwide. It is crucial to evaluate whether it is the most pressing concern when compared to other threats such as pollution, habitat destruction, and climate change. While overfishing undeniably contributes to the degradation of marine environments, other factors must also be taken into consideration to arrive at an informed conclusion.

One major aspect of the problem is the unsustainable fishing practices that have been adopted by many nations. These practices often result in the extraction of fish species at rates that cannot be replenished naturally. The rapid depletion of marine resources not only affects the balance of marine ecosystems but also has severe consequences for human populations relying on seafood as a primary source of protein.

However, overfishing is not the sole factor contributing to the deterioration of marine environments. Pollution, in the form of plastic waste and chemical contaminants, poses a significant threat to marine ecosystems. The accumulation of these pollutants in the food chain has led to widespread health problems among marine species, ultimately disrupting the delicate balance that sustains life beneath the waves.

Furthermore, habitat destruction resulting from human activities such as coastal development and bottom trawling has resulted in the loss of critical marine habitats. This destruction leads to a decline in biodiversity and disrupts the natural processes that maintain healthy ecosystems. While overfishing may exacerbate these effects by reducing fish populations, it is important not to overlook the broader range of threats at play.

In conclusion, while overfishing undoubtedly presents a significant challenge to marine ecosystems, it cannot be considered the sole or even the greatest threat. Factors such as pollution and habitat destruction must also be addressed in order to preserve the health and resilience of our oceans. Efforts to combat these threats should involve not only sustainable fishing practices but also concerted international action to reduce pollution and protect critical marine habitats.

Overall score: Band 9

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