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The image displays a line graph with speed in kph on the x-axis ranging from 10 to 130 in increments of 10, and nitrogen oxide emissions in (µg/km) on the y-axis ranging from 0 to 45 in increments of 5. There are four lines representing different vehicles: diesel cars with the highest emissions starting at 40, peaking at 42 around 50 kph, decreasing to 30 at 90 kph, rising back up to 35 at 130 kph; petrol cars starting at approximately 10, rising to a peak of 15 at 50 kph, falling to 5 at 90 kph and ending at 10 at 130 kph; lorries beginning at about 35, peaking at around 38 at 50 kph, dropping to 30 at 90 kph, and concluding at 35 at 130 kph; and buses starting at approximately 25, peaking just above 30 at 50 kph, decreasing to around 20 at 90 kph, and finishing at 25 at 130 kph.
Given the complexity of the image, the above description may not be entirely accurate.
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Note: Both the topic and the answer were created by one of our users.
The line graph illustrates how much noxious gas (g/km) is produced by four vehicles.
Overall, it is evident that the amount of gas emitted by buses is the highest point, whereas that of production is the lowest trend among the other two vehicles.
Looking at details, the nitrogen oxide released by a diesel car stood at 40 g/km at a speed of 10 kph; however, it dramatically declined to just over 25 (g/kg) at a rate of 60 kph; thereafter, it significantly inclined to a level of around 42 (g/km) at the highest speed. Furthermore, although the lorry car that produced the amount of hazardous gas started at around 35 (g/km) with a rate of 10 kph, it slightly went down to reach just over 15 (g/km) at 90 kph, and after that, it reversely rose at the level of just under 30 (g/km) in the end.
Turning to the remaining feature, in terms of releasing gas by petrol cars and buses, the number of gases, produced by these vehicles has just over 10 (g/km) and just over 5 (g/km) respectively, these points plateaued from the start point to the end mark.
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