final draft

The large population of Seoul has lead to several negative effects. At first, there is traffic jam. In every morning, people take many hours to commute. During rush hour, the public transportation system is crowded. Then this matter causes the air pollution. It’s difficult to breath in and out because of dirty air. There are many patients who have bronchial trouble. Finally the air polluted makes acid rain. When people are exposed to acid rain, there are some possibilities to become baldhead. The acid rain also makes pollution to the underground water. People need to think how to overcome these problems.