Thermodynamics. 1 st Law of Thermodynamics Conservation of energy When heat flows to or from a system, the system gains or loses an amount of energy equal.
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Human Body Unit Part VI/XIII The Digestive System Copyright © 2010 Ryan P. Murphy.
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Energy Resources Chapter 10. Energy Resources Supplementing free solar energy –99% of heat comes from the sun –Without the sun, the earth would be –240.