The graph below shows different sources of air pollutants in Portugal from 2005 to 2020. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The line graph is the pictorial representation of different sources of air pollutants in Portugal from 2005 to 2020. It shows the air pollutants from transport, Industry and household in million tones. Overall, the graph draws a good picture in showing the changes in these sources over all these years. While household remained more stable […]