Автор: Пользователь скрыл имя, 14 Декабря 2011 в 19:58, доклад
Horrible condition of nowadays ecosystem is one of the most topical global problems. A human has spent almost 2 millions of years, fighting for survival against powers of nature and hundreds of creatures… Now he has been being the master of the planet for almost 300 years, and he has already managed to put the Earth on the verge of doomsday.