Chapter 12 is a one loaded with all types of fabulous information. It would be difficult for me to construct any exercises from it. To assist in your studies of chapter 12, I would highly recommend that you visit the on-line quizzes by the text author. You may link to these quizzes here. Within the chapter are many excellent charts, graphs, images, and the like. Familiarizing yourself with these should assist you as you learn the information presented in this chapter.