Environmental Science 14th Edition by Tyler Miller ,Scott Spoolman

Exercise 13

What is the key concept for this section What is our main source of energy What are three forms of indirect solar energy What is commercial energy and what major types of it are used in the world and in the United States What are fossil fuels What is crude oil (petroleum) and how is it extracted from the earth and refined Define peak production. What is a petrochemical and why are such chemicals important How much oil does the United States produce, compared with what it uses What are the major advantages and disadvantages of using crude oil as an energy resource What is shale oil and how is it produced What is tar sand, or oil sand, and how is it extracted and converted to heavy oil What are the major advantages and disadvantages of using heavy oils produced from tar sand and shale oil as energy resources