Documents экология

1. Problems of man-modified ecosystem 2. Warming up. Quotation“If you don’t think about the future you will not have it.”John Galsworthy 3. Analyzing the idea of the…

Education экология

1. Problems of man-modified ecosystem 2. Warming up. Quotation“If you don’t think about the future you will not have it.”John Galsworthy 3. Analyzing the idea of the…