The chart below shows the sources of air pollution in a city. Describe the chart in 150 words. You should highlight and summarize the information given in the chart:—

The pie chart is about air pollution in a city. The chart is divided into 5 parts. It shows the sources that cause air pollution in various degrees. The chart also shows the percentages of liability of these sources for air pollution. We know that the vehicles running in the city emit gases and pollute air. It is 60 percent liable for air pollution. Actually, this source is the main culprit for air pollution according to the chart. Then, it is industries and factories. At the time of power generation, industries and factories emit gases and cause air pollution. It is 18 percent liable for air pollution. Power plant centres also emit gases, and they are 13 percent liable for air pollution. Heating and/or air-conditioning are/is 6 percent liable for it. However, last of all, waste disposal bears the rest $3 \%$ liability for air pollution. In fact, all these sources of air pollution are the key elements of our modern urban life. So, controlling the air pollution would be a big challenge in near future.