資料紹介
In recent years, various environmental problems have arisen. This time, I investigated about air pollution. It is the most interested problem for me. I want to explain the cause and measure of air pollution below.
Air pollution happens with our social activity. There are the two main causes. First, when a factory performs a production activity, an air pollution substance is discharged. Second, an air pollution substance is discharged by use of a car.
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A serious problem ― Air pollution
In recent years, various environmental problems have arisen. This time, I investigated about air pollution. It is the most interested problem for me. I want to explain the cause and measure of air pollution below.
Air pollution happens with our social activity. Ther...
