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Unformatted text preview: 1 Major Layers of Earth atmosphere &ocean crust mantle core How did these layers form and evolve? How do these layers behave and interact? Geosystems: Thinking about Earth Dynamics Defne a System based on components needed to describe observed behaviors. Components interact and exchange mass and energy. Non-linearities can lead to surprising results. Some examples Follow: What is a system? System = a series of entities that interact. examples: climate system (sun, ocean, atmosphere -> temperature) hydrothermal (hot rock, water -> temperature, chemical comp.) Cycle = movement from one part of the system to another example: Oxygen inuenced by photosynthesis, respiration and weathering Hydrologic Cycle: A Dynamic System Net evaporation Winds Precipitation Runoff Ocean Land H2O vapor Dynamical System Behavior Deterministic Systems: interactions governed by physical laws Linear System: deterministic relations are linear, and behavior through time is predictable Interactions may depend on state oF system...
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