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

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IELTS Writing Task 2 Topic: The role of urban green spaces in improving air quality.

Question: To what extent do you believe that urban green spaces contribute to the improvement of air quality in cities, and how can this be further enhanced?

Model Answer:

The introduction of urban green spaces has become an increasingly important aspect of city planning due to the ever-growing population and rapid industrialization. The role of these spaces in improving air quality is significant, as they serve multiple purposes that contribute to the overall well-being of a city's inhabitants. This essay will explore the various ways in which urban green spaces enhance air quality and suggest methods for further enhancing their impact on the environment.

Firstly, urban green spaces play a crucial role in absorbing pollutants such as carbon dioxide, sulfur dioxide, and nitrogen oxides from the atmosphere. These pollutants are released through various human activities like burning fossil fuels, industrial processes, and vehicle emissions. Through the process of photosynthesis, green spaces effectively reduce the concentration of these harmful substances in the air, thereby improving overall air quality. Moreover, trees and plants also release oxygen back into the atmosphere, which is essential for human survival.

Secondly, urban green spaces help to regulate temperature and humidity levels in cities. The presence of vegetation creates a cooling effect, reducing the heat island phenomenon that occurs in densely populated urban areas. This, in turn, leads to a decrease in energy consumption for heating and cooling, ultimately reducing emissions from power plants. Additionally, green spaces absorb excess rainwater and release it back into the atmosphere through transpiration, thereby maintaining humidity levels and preventing the formation of smog.

Lastly, urban green spaces can be further enhanced by implementing strategic planning initiatives such as increasing tree planting efforts in high-traffic areas, promoting public transportation and cycling infrastructure, and designing buildings with energy-efficient technologies. Furthermore, creating more green corridors that connect different parks and natural reserves will not only promote biodiversity but also encourage the movement of air currents, thereby improving air quality.

In conclusion, urban green spaces play a vital role in enhancing air quality in cities by absorbing pollutants, regulating temperature and humidity levels, and providing essential ecosystem services. To maximize their potential impact on the environment, it is crucial to continue implementing strategies that prioritize the integration of green spaces into city planning and development.

Score: Band 9

This model answer demonstrates a clear understanding of the topic and effectively explains the role of urban green spaces in improving air quality. The essay is well-structured, with a strong introduction, body paragraphs that support the main argument, and a conclusion that summarizes the key points. Additionally, the language used is appropriate for an IELTS Writing Task 2 question, making it an ideal example for scoring Band 9.

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