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 line chart presents the amount of released nitrogen oxide from four different vehicles at divergent paces. Overall, most of carbon footprint is contributed by trucks and buses, which have low carbon emission rates in initial kilometres and display a reverse trend in high speed. In addition, regardless of velocity, the amounts of nitrogen oxide […]