Fossil Fuels


http://www.energyquest.ca.gov/story/chapter08.html


1.  Where Fossil Fuels come from

2.  Coal

3.  Oil or Petroleum 

4.  Refineries 

5.  Natural Gas 

6.  Saving Fossil Fuels


Charts:

http://static.ddmcdn.com/gif/hydrogen-economy-chart.gif

http://images.wri.org/chart_et_fossil_fuels_2004.gif

이 게시물을