реферат Environmental problems
Environmental problems in the modern world. Environmental protection. The shortage of clean water. Industrial pollution. Lake Baikal is one of the worlds’ largest and most beautiful lakes. Rich variety of fish and plants. The problem of air pollution.
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| Рубрика | Экология и охрана природы |
| Вид | реферат |
| Язык | английский |
| Дата добавления | 17.05.2014 |
| Размер файла | 10,5 K |
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