ENV100Y5 Chapter Notes - Chapter 3: Systems Theory, Geosphere, Dynamic Equilibrium
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ENV100Y5 Full Course Notes
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Document Summary
A system is . a portion of the universe that can be separated from the rest, for the purpose of studying changes that occur within it, under changing conditions. Environmental entities are complex systems that interact with each other . Network of relationships among components that interact with and influence one another. To solve environmental problems, all appropriate systems must be considered: many other disciplines also use a systems approach and general systems theory. Categorizing systems makes earth"s complexity more understandable: major earth spheres: So we have to consider the system as an interacting whole. Types of systems based on properties of boundaries. Closed system: energy can be exchanged across the boundaries, but matter cannot. Open system: both matter and energy can be exchanged across the boundaries. Environmental systems and subsystems: most environmental systems are open. Living in a closed system has some consequences: There is no away to throw things to. Dynamic equilibrium systems are constantly changing, interacting, balancing.
