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IELTS Free Online Writing Practice - The role of urban green spaces in improving air quality

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Topic: The role of urban green spaces in improving air quality

The importance of green spaces in cities cannot be understated, as they play a vital role in enhancing the overall living environment and well-being of city dwellers. One significant contribution of urban green spaces is their ability to improve air quality by absorbing pollutants, reducing temperature extremes, and providing natural habitats for various species. This essay will discuss the importance of urban green spaces in mitigating air pollution and their potential benefits on both the environment and human health.

Firstly, urban green spaces have a crucial role in absorbing air pollutants. Trees and plants act as natural filters, trapping dust, smoke, and other harmful particles, thereby reducing the concentration of these substances in the atmosphere. Moreover, they also absorb carbon dioxide (CO₂), a primary greenhouse gas, and release oxygen through the process of photosynthesis. This helps to reduce the overall CO₂ concentration in the atmosphere, which is responsible for global warming.

Secondly, green spaces help regulate temperature extremes in urban areas. The presence of trees and vegetation provides shade and cools down the surrounding environment by absorbing sunlight and releasing moisture through a process called transpiration. This helps to mitigate the urban heat island effect, which is characterized by higher temperatures in densely populated cities compared to their rural counterparts. As such, green spaces can help alleviate the effects of global warming and contribute to a more comfortable living environment for residents.

Lastly, urban green spaces provide natural habitats for various species, promoting biodiversity within city limits. This not only enhances the aesthetic appeal of cities but also supports the well-being of local ecosystems. For instance, birds and insects that feed on pollutants help to maintain a cleaner environment, while plants and trees act as buffers against noise pollution.

In conclusion, urban green spaces play a pivotal role in improving air quality by absorbing pollutants, regulating temperature extremes, and supporting biodiversity. Cities should prioritize the development and preservation of these spaces to ensure a healthy living environment for their residents and maintain ecological balance within urban landscapes.

Model Answer:

This essay has effectively discussed the role of urban green spaces in improving air quality, examining how they absorb pollutants, regulate temperature extremes, and support biodiversity. The essay is well-structured, with a clear introduction, body paragraphs that address each point, and a conclusion that summarizes the main arguments. It demonstrates a good understanding of the topic and provides relevant examples to illustrate its points.

Based on IELTS scoring standards, this essay would receive a Band Score of 8 or above due to its coherence, cohesion, and effective use of supporting details.

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