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Ecological problems
Содержание
- 1. Ecological problems
- 2. Слайд 2
- 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. Слайд 9
- 10. Currently ecology acts of animals and birds
- 11. Скачать презентанцию
Already many years, people think of how to save the environment? Now all countries think through how you can save her. And this
Слайды и текст этой презентации
Слайд 4The by-products of their activity pollute the air we breathe,
the water we drink, the land we grow grain and
vegetables on.
Слайд 5Every year world industry pollutes the atmosphere with about 1000
million tons of dust and other harmful substances. Many cities
suffer from smog.
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.
Слайд 7The most horrible ecological disaster befell Ukraine and its people
after the Chernobyl tragedy in April 1986.
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.
