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Band 6+: The given graph shows the nitrogen oxide emissions produced by four vehicles. Summarize the information by selecting and reporting the main features and make comparisons where relevant.

Image for topic: The given graph shows the nitrogen oxide emissions produced by four vehicles. Summarize the information by selecting and reporting the main features and make comparisons where relevant.
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The image graphically represents nitrogen oxide emissions by four vehicle types (Buses, Lorries, Petrol cars, Diesel cars) across speeds (10-130 kph): Buses show a decreasing trend from ~40 g/km at 10 kph to ~28 g/km at 50 kph, followed by a subsequent rise to ~32 g/km at 130 kph; Lorries emissions start at ~35 g/km at 10 kph, decreasing to ~20 g/km at 60 kph, then ascending to ~28 g/km at 130 kph; Petrol cars maintain a steady emission rate of ~5 g/km across all speeds; Diesel cars begin at ~8 g/km at 10 kph, peaking briefly at ~10 g/km at 30 kph, then stabilize around ~9 g/km beyond 40 kph.
Given the complexity of the image, the above description may not be entirely accurate.
Note: Both the topic and the answer were created by one of our users.

The given line chart depicts the proportion of NO2 emitted by four provided transports, which shows up to 130 km/h.

In general, the figures for buses and lorries share the same upward trend while petrol and diesel cars’ figures barely change. In addition, while buses are the vehicle produced NO2 emissions the most, the contrast rank of diesel cars can be observed.

Obviously, buses NO2 emission decreases in the first 60 km/h, start at 40 g/km to just above 35 g/km, then the figure recovers back to above 40 at 130 km/h. About 33 g/km NO2 emitted at 10 km/h can be witnessed in Lorries’ figure, then it drops to slightly under 20 g/km at 90 kph which gradually climb to 25 g/km onward. Additionally, both figures have a similarity change with decrease to 60 kph in the former and 90 kph in the latter; followed by a sharply increased in buses, the figure for lorries emission slowly increased and end almost half the other, respectively.

The emission of NO2 in petrol cars fluctuate around 10 g/km from 10 to 130 km/h. Diesel cars’ emission, however, start approximately 7 g/km at 10 km/h then slowly decrease to 5 g/km at 130 km/h. Moreover, the NO2 produced proportion of petrol cars mostly doubled the other at all speed.

Word Count: 217

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The given graph shows the nitrogen oxide emissions produced by four vehicles. Summarize the information by selecting and reporting the main features and make comparisons where relevant.

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