GEOL 1010 Lecture Notes - Lecture 4: Plate Tectonics, Water Cycle, Geosphere
31 Jan 2017
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A group of interacting parts that forms a complex whole. The five spheres and cycles within them. Clouds, weather, air that we breathe, gasses. Takes aspects from hydrosphere, geosphere, energy, etc. to make life. How did you get mountains, minerals, sediments, etc. Plasma (what the sun is made of) The sun is the ultimate energy source for cycles that occur at or near the. Earth"s internal heat is the ultimate energy source for cycles that occur on. Matter and energy can enter or leave the system. Energy, but not matter, can be added or subtracted to the system. Systems naturally tend toward the state of equilibrium. A system becomes disturbed when it crosses a threshold. A perturbed system responds to that disruption via feedbacks. The systems response accentuates (amplifies) the initial perturbation. Can knock a system out of equilibrium. The systems response moves the system back toward equilibrium. Attempt to damped perturbations and return a system to equilibrium.
