EESA06H3 Lecture Notes - Pyroxene, Cryosphere, Chlorophyll

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19 Apr 2013
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Scientists tend to look at earth as a series of systems. The upper part is what interacts with everything else. 78% of atmosphere is nitrogen and 21% of atmosphere is oxygen. Biosphere is not only the living components. The biosphere contains things such as vegetation in the oceans, not just what is on land. Green to red chlorophyll areas are active biologically and are lush. The ecosphere is where the biosphere is interacting with the atmosphere, lithosphere and hydrosphere. Humans have only been a part of earths history in a blink of an eye in geologic time. Conflict between the things that make for a modern human society and the environment; our activities have an impact on planet earth. External energy is energy outside from the earth; energy from the sun. Water or air heated at the equator by the sun causes a flow towards the poles.

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