Changes in ecosystems: Fall Foliage/ Many authors
Tác giả : Many authors
Nhà xuất bản : Macmillan
Nơi xuất bản : New York
Mô tả vật lý : 102p; 25cm
Chủ đề : 1. Animals. 2. Ecology. 3. Ecosystems. 4. English. 5. Environment. 6. Interactions. 7. Pollution. 8. Systems.
Thông tin chi tiết
| Tóm tắt : | This book is about changes in ecosystems, discover how natural changes help ecosystems remain stable, too many people are creating a biig problem for earth. see how our growing population affects the environment and what you can do about it. Learn to conserve and become part of the solution to pollution. Extinction is on its way out. Increase your awareness of Earth''s endangered species. |