Unformatted text preview: his contribution to plate tectonics. The theory of mantel convection is often compared to a pot of boiling water. The boiling water example is explained as water or molten rock is heated it rises up to the surface and spreads out and cools, then it falls back to the core to be heated back up to start the process all over again. For convection to happen you need a heat source and in the earth you have two sources of heat, radioactive decay and residual heat. These things are all directly related to volcanic activity and the process of heating molten rock and the circulation from the core to the surface, earthquakes and eruptions create new land each day. These forces are keeping our planet alive and able to support life and an atmosphere. Our planet is the only one in the solar system that is volcanically and tectonically active, and thus is the only one with life present....
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This note was uploaded on 08/18/2011 for the course BUSINESS 212 taught by Professor Fred during the Spring '11 term at University of Phoenix.
- Spring '11