IDSB02H3 Lecture : Lecture 3
13 Apr 2011
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Document Summary
9/27/2010: a system can be anything, very much relies on the question you are trying to answer, ex. If you"re concerned about what happening to the tree in your backyard that tree might be the system. Input could be the sun energy into the tree. negative feedback loop: when it"s hot you sweat, otherwise you would burn up moving the system in an opposite direction, it regulates you. In general keeps things in equilibrium this is a steady-state. 9/27/2010: makes soil, rocks degrade and break apart and weather, provide chemicals, basis for all life, i t is necessary for all things to happen for example for plants to go. w/o plants we all die: rocks don"t always stay the same, they change by. weathering: pieces fall off, dissolve off the rock. 3 types of boundaries: divergent plate boundary, transform plate boundary, causes earthquakes, convergent plate boundary, causes mountain ranges.
