Презентация на тему The protection of nature

Содержание

2. The protection of nature has become
3. Since ancient times Nature has served Man,
4. With the development of civilization
5. The most polluted is air, water
7. Water The level of water
8. Air Air pollution is a problem
9. DeforestationVast forests are cut and burn in
10. Land Contamination of soils also occur
11. The most horrible ecological disaster befell
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The protection of nature has become one of the most burning problems of the 21th century.

Since ancient times Nature has served Man, being the source of his

With the development of civilization man's interference in nature began

The most polluted is air, water and land now. People don’t

Water The level of water treatment is extremely low

Air Air pollution is a problem the 21st century. Main pollutants

DeforestationVast forests are cut and burn in fire. Their disappearance upsets the

Land Contamination of soils also occur as a result of agricultural

The most horrible ecological disaster befell Ukraine and its people after

Слайды презентации

Слайд 2 The protection of nature has become one

The protection of nature has become one of the most

of the most burning problems of the 21th century.

Слайд 3 Since ancient times Nature has served Man, being

Since ancient times Nature has served Man, being the source of

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.

Слайд 4 With the development of civilization man's

interference in nature began to increase. The by-products of

people's activity pollute the air we breathe, the water we drink, the land we grow grain and vegetables on.

Слайд 5 The most polluted is air, water and

The most polluted is air, water and land now. People

land now. People don’t think about the consequences of

their activities. We must solve environmental problems without harming nature.

Слайд 6

Слайд 7 Water
The level of water treatment

Water The level of water treatment is extremely low By

is extremely low
By water pollution distinguished:
chemical
physical (thermal,

radiation);
biological (microbial).
To ensure the required water status of natural water bodies need to develop and implement measures to protect water.

Слайд 8 Air
Air pollution is a problem the

21st century. Main pollutants are emissions to air pollutants.

The government must control of gases emission, which damage the ozone layer.

Слайд 9 Deforestation
Vast forests are cut and burn in fire.

DeforestationVast forests are cut and burn in fire. Their disappearance upsets

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.

Слайд 10 Land
Contamination of soils also occur as

a result of agricultural practices, pesticides pesticide residues unused

fertilizer.

Слайд 11 The most horrible ecological disaster befell Ukraine

The most horrible ecological disaster befell Ukraine and its people

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.