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Tuesday, July 22, 2014

Unit 3 Sec. D and Sec. C Summary HW

7/22/14
Unit 3 Sec. D Summary HW

1) Biomolecule is the large organic molecule found in living systems.

2) a. Natural gas
b. Coal
c. Petroleum

3) Coal, petroleum, and natural gas.

4) The sun.

5) People needed more ways for transportation, used petroleum for gas for the cars, allowed easier and faster transportation.


Unit 3 Sec. C Summary HW 3

17) a. Cellular respiration and as cutting timber are burned CO2 is released into the atmosphere.
b. The lithosphere and atmosphere
c. Deforestation and fossil fuel emissions

18) Carbon enters the atmosphere through respiration, diffusion happens in the atmosphere into the hydrosphere, the lithosphere stores the carbon, and gets released into the atmosphere.  

19) CH4 + 2 O2 –––> CO2 + 2 H2O

20) a. As the water evaporates it gets even hotter.
b. Clouds can block the sun.

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