Biosphere
All forms of life and the three environmental matrices of atmosphere, soils, and oceans form a closely integrated network that can be called the “biosphere.” Thus the biosphere is the system with four main internal, interacting components: air, water, soil, and life. Considering this system, what makes the biosphere dynamically distinct from other layers of Earth, such as lithosphere, mantle, or core, is undoubtedly the presence and influence of life.