IELTS Free Online Writing Practice - Discuss the impact of pollution on freshwater ecosystems.
IELTS.WORK Free Online Writing Practice # 1710774102
IELTS Writing Task 2 Topic: Discuss the impact of pollution on freshwater ecosystems.
Model Answer:
The increasing levels of pollution have a significant impact on freshwater ecosystems worldwide. This essay will analyze the consequences of water pollution on aquatic life, the environment, and human health, as well as propose potential solutions to mitigate these adverse effects.
One of the most apparent impacts of water pollution on freshwater ecosystems is the decline in the biodiversity of aquatic species. The introduction of harmful substances such as industrial chemicals, agricultural runoff, and sewage discharge disrupts the natural balance of the ecosystem. As a result, native plant and animal populations experience fluctuations in their numbers, sometimes leading to extinction. This loss of biodiversity weakens the resilience of freshwater ecosystems, making them more susceptible to further environmental changes and disturbances.
Moreover, water pollution also affects the quality of the aquatic environment. The accumulation of pollutants in the sediment and water column can result in a decrease in dissolved oxygen levels. This, in turn, creates anoxic conditions, which are detrimental to the survival of many species. Additionally, the degradation of water quality can lead to eutrophication, a process wherein excessive nutrient input stimulates the growth of algae and other aquatic plants. Although these organisms form the basis of the food chain, their rapid multiplication can eventually deplete oxygen levels in the water, causing mass die-offs of fish and other marine life.
Water pollution also poses a significant threat to human health. Contaminated freshwater sources serve as primary vectors for the transmission of waterborne diseases such as cholera, dysentery, and typhoid fever. Furthermore, the consumption of polluted fish can result in the bioaccumulation of toxic substances like mercury and PCBs in human tissues, leading to a range of health issues, including neurological disorders and cancer.
To mitigate the negative effects of water pollution on freshwater ecosystems, several measures should be implemented. Firstly, stricter regulations regarding industrial discharges and agricultural runoffs are necessary. The adoption of cleaner production technologies can help minimize the release of pollutants into freshwater sources. Additionally, wastewater treatment facilities must be upgraded to ensure that sewage discharge is properly treated before being released back into the environment.
In conclusion, water pollution has profound consequences for freshwater ecosystems, affecting aquatic life, the environment, and human health. Addressing these issues requires a multi-faceted approach that includes stricter regulations on industrial and agricultural practices, as well as the improvement of wastewater treatment facilities. By implementing such measures, we can help preserve the integrity of our freshwater ecosystems for future generations.
Score according to IELTS scoring standards:
Task Response:
9 (The candidate has responded fully to all parts of the question and demonstrated a clear understanding of the topic.)
Coherence and Cohesion:
9 (The essay is well-organized, with a logical flow of ideas. The candidate uses cohesive devices effectively to link ideas and create a smooth, coherent text.)
Lexical Resource:
8.5 (The candidate demonstrates a wide range of vocabulary, including less common or more specific words in the context of the essay. However, there may be some minor lexical inaccuracies that slightly reduce the overall clarity and precision of expression.)
Grammatical Range and Accuracy:
8.5 (The candidate demonstrates a high level of grammatical accuracy. There are only occasional lapses that can be attributed to complex or advanced language structures, which do not significantly impact the overall comprehensibility of the essay.)
Source:
https://www.ielts.work/?id=1710774102&page=ielts-writing-practice
For more:
https://www.ielts.work/?page=ielts-writing-practice
