EESA06H3 Chapter Notes - Chapter 1: Internal Energy, Love Wave, Asthenosphere
17 Jul 2013
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Document Summary
Earth science: interactions among the four parts of the earth system: atmosphere (air, water), hydrosphere aka cryosphere (water, ice), biosphere (plants, animals) and geosphere (land, rocks). The exosphere is sometimes considered the 5th system and consists of the sun and features from space. A system is defined as inter-related elements comprising a unified whole. It consists of elements which are connected together in order to facilitate the flow of information, matter or energy. Components of the earth system: lithosphere: the solid earth; the upper part of the solid earth which interacts with the other components of the earth system. The crust of the earth interacts with everything else: atmosphere: a mixture of gases that consists of 78% nitrogen and 21% oxygen, hydrosphere: total of earth"s liquid and solid water. Sub-sphere" = cryosphere which means frozen water: biosphere: living and dead organic components. It is where living organisms can live or is suitable for living.
