Environment problems

Global ecological crisis. Pollution of atmosphere. The preservation of the biosphere of an ozone layer of the atmosphere absorbing ultra-violet radiation harmful for live oragnizm of the Sun. Reduction of number of the woods. Exhaustion of rainforests.

Рубрика Экология и охрана природы
Вид презентация
Язык английский
Дата добавления 03.10.2012


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