Air pollution is one of the major problems of the modern world. A great deal of energy is needed to run the factories of modern industrial nations. Automobile, trains, planes and busses need energy, too. Nearly all of this energy is produced by burning fuels. The burning produces wastes, some of which remain in the air, causing air pollution.
Scientists are finding ways to stop air pollution especially in big industrial areas and densely-populated cities. They are studying new ways of generating electricity that may be less damaging to the environment. In the meantime, many power plants are being modernized to give off less polluted material. Also, engineers try to design and locate new power plants to do minimum damage to the environment.
However, it may be that we still have a long way to go before we have a clean world. Nearly all of the countries are trying hard to prevent and control air pollution. There indeed seems to be no end to tasks that environmentalists will be required to do. People will continually find new ways to control pollution
钱夹里的信
母亲永远成不了父亲
It's worth it!
母亲
老师改变了他的一生
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两僧侣谁更虔诚?
Run Through the Rain
专栏:下任总统,祝你好运
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J.B.普里斯特列《生活的艺术》
父亲给儿子的一封信:当我日渐老去的时候
不知不觉爱上你
Three days to see(Part 3)
美国宠物
培根美文赏析-Of Goodness and GOODNESS OF NATURE 论善
The Circus 父亲之间的默契
纽约持续从“超级飓风”灾后复苏
爱莫大焉-为朋友献出生命
如果有来生
爱,催人奋进的力量
用贸易法终结补贴战?
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英语美文 7 Steps to Positive Self Talk
两个人的早餐!
中国太阳能电池板行业深陷危机
英语课堂游戏:听音辨字母
今天你“爱树”了吗?
拿破仑写给爱妻的缠绵情书
情人节别误发了暧昧短信!
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