The chart below shows the nitrogen oxide emissions of four different vehicles at different speed. Summarize the information by selecting and reporting the main features, and make some comparisons where relevant.

The chart illustrates the emissions of nitrogen oxides (NOx) in grams per kilometer across four distinct vehicle types – diesel cars, gasoline cars, trucks, and buses – at varying speeds ranging from 0 to 130 km/h. A careful examination of the data reveals notable disparities in nitrogen oxide emissions between the vehicle categories, with variations […]