Ecological problems

Содержание

1. Ecological problems
2. Since ancient times Nature has served Man,
3. Large cities with thousands of smoky industrial enterprises appear all over the world today.
4. The by-products of their activity pollute the
5. Every year world industry pollutes the atmosphere
6. Vast forests are cut and burn
7. The most horrible ecological disaster befell Ukraine
8. Environmental protection is of a universal concern.
9. The international organisation Greenpeace is also doing much to preserve the environment.
10. But these are only the initial steps
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Since ancient times Nature has served Man, being the source of his life. For thousands of years people lived in harmony with environment and it seemed to them that natural riches

Слайды и текст этой презентации

Слайд 1 Presentation
«Ecological problems»

Слайд 2Since ancient times Nature has served Man, being the source

of his life. For thousands of years people lived in

harmony with environment and it seemed to them that natural riches were unlimited. But with the development of civilization man's interference in nature began to increase.

Since ancient times Nature has served Man, being the source of his life. For thousands of years

Слайд 3Large cities with thousands of smoky industrial enterprises appear all

over the world today.

Слайд 4The by-products of their activity pollute the air we breathe,

the water we drink, the land we grow grain and

vegetables on.

The by-products of their activity pollute the air we breathe, the water we drink, the land we

Слайд 5Every year world industry pollutes the atmosphere with about 1000

million tons of dust and other harmful substances. Many cities

suffer from smog.

Every year world industry pollutes the atmosphere with about 1000 million tons of dust and other harmful

Слайд 6 Vast forests are cut and burn in fire. Their

disappearance upsets the oxygen balance. As a result some rare

species of animals, birds, fish and plants disappear forever, a number of rivers and lakes dry up.

Vast forests are cut and burn in fire. Their disappearance upsets the oxygen balance. As a

Слайд 7The most horrible ecological disaster befell Ukraine and its people

after the Chernobyl tragedy in April 1986.
A great damage has

been done to the agriculture, forests and people's health. The consequences of this explosion at the atomic power-station are tragic for the Ukrainian, Byelorussian and other nations.

The most horrible ecological disaster befell Ukraine and its people after the Chernobyl tragedy in April 1986.A

Слайд 8Environmental protection is of a universal concern. That is why

serious measures to create a system of ecological security should

be taken. Some progress has been already made in this direction. As many as 159 countries — members of the UNO — have set up environmental protection agencies.