Denifition:

Air pollution is one of the most worrying problems of our time. The great industrial revolution brought about many positive changes to the world; better transportation, cheaper products, and a better life.However,it also had bad influences on people’s life such as the pollution. At the beginning of the industrial revolution, no one paid any attention to the problems of pollution. Together with the scientific progress, people started to realize this problem. Firstly, we must understand the denifition of the air pollution. ….học như trong ppt => Tao

      Main reason :     Air pollution arises from many sources. The burning of gasoline in automobiles and incineration of products produce harmful gases . From various factories come millions of particles that are carried off in the air. As parts of the world become more industrialized, air pollution has generally increased and new health hazards have developed. Air pollution can result from causes that we can not control. For example, forest fires, dust storms, and volcanoes.

There are two kinds of sources of air pollution: indoor and outdoor air pollution

The indoor air pollutants include many products, from cleansers to furnishings, which release harmful organic compounds into the air you breathe....

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 The other is outdoor pollution. This pollution includes from factories to volcanoes. Gases are released in the air because of the fissile fuel burned by the factories of ships, automobiles,ships, and trains. Every industry process contribute to make the air polluted=è Hà Yến

   Effects   

 Air pollution makes many serious affects on our life . When pollutants are released in the air, they contaminate the atmosphere with the deadly gases like carbon monoxide, carbon dioxide, nitrogen dioxide, sulfur dioxide, and so on. Consequently, air pollution effects land, buildings, and human health

     Acid rain is one of the products of air pollution. Acid rain is created when raindrops combine with the polluted air. Acid rain causes erosion of buildings, destruction of crop, and other assets.

      Air pollution also causes global warming. Estimates of global average temperatures have projected an increase of as much as 90F before the year 2100.

     Effects on human, air pollution causes many respiratory diseases such as …..( trog ppt)  =>> Thu

     Solutions     

The governments of the world’s nations are taking measures to solve this problem. Many countries have passed Clean Air Act, which have reduced the air pollution. However, these laws are not enough to protect the environment. The citizens of these countries have to take steps to help solve this problem. For example,….nhìn ppt nói

 In conclusion, if the air pollution problem continues there might come a day when we have to breath out of an oxygen tank. So all I can do is do my part to save the enviroment and hope for a solution to this problem.èHuệ

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