Examines ecology, the study of how land, water, air, humans, plants, and animals function as systems relating to each other, and describes how they affect each other and the world.
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Book Description Simon & Schuster (Juv). Library Binding. Book Condition: Fair. Bookseller Inventory # G0132232154I5N00
Book Description Book Condition: Good. Book Condition: Good. Bookseller Inventory # 97801322321594.0