Аir pollution
Air pollution as dangerous problem. Causes of air pollution: cancer, acid rain and the disability to photosynthesize. The major sources that enable carbon monoxide to enter the atmosphere. The control of emission from the most common pollutant, the car.
| Рубрика | Иностранные языки и языкознание |
| Предмет | English |
| Вид | доклад |
| Язык | английский |
| Прислал(а) | okwell |
| Дата добавления | 17.02.2012 |
| Размер файла | 11,3 K |
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