Разделы презентаций
- Разное
- Английский язык
- Астрономия
- Алгебра
- Биология
- География
- Геометрия
- Детские презентации
- Информатика
- История
- Литература
- Математика
- Медицина
- Менеджмент
- Музыка
- МХК
- Немецкий язык
- ОБЖ
- Обществознание
- Окружающий мир
- Педагогика
- Русский язык
- Технология
- Физика
- Философия
- Химия
- Шаблоны, картинки для презентаций
- Экология
- Экономика
- Юриспруденция
Ecological Problems
Содержание
- 1. Ecological Problems
- 2. Ecological Problems
- 3. As you see, factories and plants dump
- 4. Cars and buses put a lot of
- 5. I’d like to add the railways are
- 6. You know that railway transport throws out
- 7. Some people’s activities do a lot of
- 8. Not to litter the ground and water
- 9. One more source of air pollution. We
- 10. Factories and plants must stop to throw
- 11. People must discuss different ecological problems and
- 12. People must change their way of life and their attitude to the nature!
- 13. People must care about animals and plants
- 14. People must not cut down so many trees.
- 15. Please, save the Environment !
- 16. Скачать презентанцию
Ecological Problems
Слайды и текст этой презентации
Слайд 4 Cars and buses put a lot of smoke into the
air. There are too many cars nowadays. There are often
traffic jams in Irkutsk. They do a lot of harm to our town atmosphere and ruin the beauty of the countryside because many new roads are built everywhere.
Слайд 5 I’d like to add the railways are also one of
the sources of pollution, especially locomotives. One locomotive exausts as
much harmful waste into the air as 40 or 50 cars.
Слайд 6 You know that railway transport throws out into the atmosphere
300 kinds of harmful substances which change the structure of
air. It’s very dangerous for the health of people.
Слайд 7
Some people’s activities do a lot of harm to forests
and trees. They are cut down. Their disappearance upsets the
oxygen balance. As a result some rare species of animals , birds and plants disappear forever. But trees disappear not only because of it. Every day we waste tons of paper made from wood .
Слайд 8
Not to litter the ground and water sources with paper,
cans or bottles. People should not throw rubbish and trash
into the rivers and lakes.
Слайд 9
One more source of air pollution. We produce carbon dioxide
when we burn things. Trees take this gas from the
air and produce oxygen. There are fewer trees and of course, more dioxide.
Слайд 10 Factories and plants must stop to throw chemical and toxic
wastes into the rivers and seas.
Слайд 11 People must discuss different ecological problems and make correct conclusions.
Only common efforts will help to stop further pollution.
