How is environmental science different from other science like biology and chemistry ?

Environmental science is different from other fields of science because it involves the way the environment affects humans and other organisms. Biology only covers the study of life and chemistry is based on the chemicals and their reactions with other substances. Environmental science also involves the idea of chaos, order, and complexity. A series of random events can produce complex, orderly systems. For example, a checkerboard is a highly orderly "system."