The pie-chart below shows some sources of air pollution in a city. Describe the chart in at least 80 words. You should highlight and summarize the information given in the chart.

Some sources of air pollution in a city

The given pie chart nicely shows the sources of air pollution in a certain city.

We all know that air is polluted mainly by smoke. Smoke emitted from vehicles contributes most in this field. $60 \%$ of the total pollution is caused by vehicles. Factories hold the second position, contributing $15 \%$ of pollution. Next comes the turn of cooking and domestic activities, having their contribution of $10 \%$. Brick-field is also a major factor in polluting air, contributing $8 \%$. Railway engines have some contribution as well and it is $5 \%$. Finally comes powerhouses, contributing $2 \%$ of pollution, though their role is not so significant.

A careful study of the chart provides us with the various elements having their contribution in polluting air. Vehicles are found to be the major contributor and powerhouse is discovered as the minor one. Effective steps should be taken to make the city healthy by minimizing the amount of pollution. Industrial parks need to be created, for all factories to be shifted there. A concerted effort (সম্মিলিত প্রচেষ্টা) is necessary to make sure that the city is free from air pollution.