Air pollution250字
Air pollution is becoming more and more serious in today's world .Some chemical factories produce terrible gas and make air bad .Buses and cars also produce waste gas .
In our daily life ,burning gas ,oil and coal also creates air pollution .The air pollution can cause a lot of problems .It is harmful to people's health .It can cause bresthing problems ,sore eyes and ever cancer .It can also harm the plants ,and the farmers will get the less harvest .Luckily,the government has tried many ways to solve the problems ,such as making laws to prevent the factories from polluting the air.
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