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The Problems of this World Today
Содержание
The technology and other scientific innovations have given us boundless opportunities to explore the world. At the same time, they have done much harm to the environment.
Слайды и текст этой презентации
Слайд 3Firstly, it is the atmosphere pollution. Plants and factories emit
harmful gases. In the process of industrial production lots of wastes are
thrown into the air.
Слайд 4 Secondly, hydrosphere pollution is not less important either.
The leakage of oil or some other kind of fuel for technical
reasons can cause a serious environmental accident. But it takes a long time the agueous medium to recover.
Слайд 5 Thirdly, usage of different chemicals to kill detrimental
insects or heighten the productivity erodes the soil and exhausts
it of fertility.
Слайд 6 To sum up, it is necessary to fulfil
our intentions on preservation of the environment so as to
keep the world for our descendants and provide them with reliable existence.
