There are two types of natural resources that we use. What are they and provide an example of each kind. (pg. 239)
What are the COSTS of using our fossil fuel resources? There are three of them. Provide a brief explaniation of each one. (pg. 240 & 241)
What are the three alternatives for using 'Thermal Energy' that we talked about? Provide a brief description of each one. (pg. 241 & 242)