Экология лекция. Природные ресурсы
Природные ресурсы. Рациональное природопользование.
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![Полный курс по ОСОЗНАННЫМ СНАМ с нуля до профи [72 лекции]](https://sun9-78.userapi.com/w7wXk64VelwDwjKPaF5CjfiPpBpkwwob-j4AKw/sQAllo9rJGs.jpg)
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