The line graph depicts the vehicles number in the United Kingdom countries like England and Wales from 2000 to 2020. Whereas, the bar graph illustrates the percentage of CO2 emission by 4 vehicles, Here units are measured in tonnes and for line graph it is measured in millions.
Overall, vehicle numbers have increased smoothly from 2000 to 2020. Large portion of carbon is released from cars in 2000, 2010, and 2020. Whereas CO2 depleting from buses remained under 0.5 tonnes.
As the line graph shows, there were nearly 20 million vehicles in 2000 which went up drastically. In 2010, automobiles was at 35 million and directly reached upto 60 million by the year 2020.
Furthermore, the bar graph describes the percentage of carbon emission in three years (2000,2010, and 2020) by 4 vehicles i.e., cars, buses, vans and trucks. Where car emission peaked by 2-3% in each year. Similarly carbon emitted from trucks went up, from 0.7 to 0.9 between 2000 and 2010, but, by the end, it almost increased upto 1.3, in 2020. On the other hand buses and vans outflow remained under 0.3-0.6.