Band 7: Task 1: (Line Graph) Differing amount of nitrogen oxide by four types of vehicles. (User-Written IELTS Writing Task 1 Sample)

The line graph compares the production of nitrogen oxide emissions by four different vehicles.

Overall, the buses, which were dominant in releasing gases, had a significant decline before rising; regarding lorries, it is noteworthy that it went down before uplifting. Diesel cars were the least harmful for the environment.

Turning to the details, it is clearly seen that buses exported gas emissions significantly more than any other transport, accounting for approximately 40 g/km of emission at the speed of 10 kph. This figure then decreased gradually to a low of around 25 g/km at the speed of 60, before rising to nearly 45 g/km. The same pattern was observed for lorries, which started producing nitrogen oxide around 32 g/km, dropped moderately to 15 g/km, and then uplifted to 25 g/km.

In contrast, the diesel car was the least in terms of generating nitrogen oxide emissions, fluctuating slightly from nearly 7 g/km to 5 g/km. As regards petrol cars, the figure is remaining stable at approximately 10 g/km.

Answers On The Same Topic:

Task 1: (Line Graph) Differing amount of nitrogen oxide by four types of vehicles.

The line graph illustrates the nitrogen oxide emissions generated by four distinct vehicles. Overall, it is clear that the nitrogen oxide emissions produced by buses moderately climb, while lorries’ nitrogen oxide emissions significantly decrease. It is also noticeable that petrol cars and diesel cars experience no change in their nitrogen oxide emissions. Regarding buses, the […]

Band 8+

Task 1: (Line Graph) Differing amount of nitrogen oxide by four types of vehicles.

The given graph illustrates the amount of nitrogen oxide emissions produced by four types of vehicles: buses, lorries, petrol cars, and diesel cars. Overall, emissions from diesel and petrol cars remained almost constant across the speed range, while buses and lorries showed both downward and upward trends. Buses consistently emitted the highest levels of nitrogen […]

Band 8+

Task 1: (Line Graph) Differing amount of nitrogen oxide by four types of vehicles.

The given graph compares how much nitrogen oxide emissions produced by four different transportations (Diesel car, Petrol car, Lorries, and Buses) over the speed of 10 to 130 kilometers per hour. Overall, despite the slight fluctuations by cars, there were upward trends and Lorries and Buses remained steady. Firstly, Lorries and Buses stayed in a […]

Band 4+

Task 1: (Line Graph) Differing amount of nitrogen oxide by four types of vehicles.

The line graph illustrates the amount of nitrogen oxide emissions produced by four types of vehicles (buses, lorries, petrol cars, and diesel cars) at various speeds. Overall, emissions from buses followed a V-shaped trend, initially decreasing and then rising, while lorries showed a steady decline. Meanwhile, both petrol and diesel cars remained relatively stable throughout […]

Band 9

Task 1: (Line Graph) Differing amount of nitrogen oxide by four types of vehicles.

The graph shows the amount of nitrogen oxide emissions produced by four vehicles. In general, the output of nitrogen oxide emissions by petrol cars and diesel cars remained nearly the same as vehicles’ speed increased. While the emissions from two other vehicles fluctuated depending on their speed. At 10 kph, the diesel car produced about […]

Band 8+

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The line graph above shows the number of international tourists (in millions) visiting three countries between 2010 and 2020.

The given picture illustrates the number of international visitors travelling three countries from the year 2010 to 2020. Overall, Country A dominated the tourist industry with the largest number of visitors across the time period. All three countries had a significant increase over a decade where Country B and C were accounted almost same at […]

Band 6+

The chart shows population figures for people aged 60 and over worldwide. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The line chart illustrates the number and percentage of the total population aged 60 and over for developed and developing countries from 1950 to 2050. Overall, the percentages in both groups increased steadily between 1950 and 2025 and are expected to continue rising until 2050. In developed countries, the number of elderly people was 95 […]

Band 6+

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Band 7+: Task 1: (Line Graph) Differing amount of nitrogen oxide by four types of vehicles.

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Answers On The Same Topic:

Task 1: (Line Graph) Differing amount of nitrogen oxide by four types of vehicles.

Task 1: (Line Graph) Differing amount of nitrogen oxide by four types of vehicles.

Task 1: (Line Graph) Differing amount of nitrogen oxide by four types of vehicles.

Task 1: (Line Graph) Differing amount of nitrogen oxide by four types of vehicles.

Task 1: (Line Graph) Differing amount of nitrogen oxide by four types of vehicles.

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The line graph above shows the number of international tourists (in millions) visiting three countries between 2010 and 2020.

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