2565 25 25 25 25 25 25 25 25 25 2 25 5 25 25 25 2 25 25 25 25 25 25 5 5 5 5 25 25 2 5 25 25 25 25 25 25 25 5 25 25 5 2 2 2 5 6 6 6 6 6 6 6 Chapter 9 Lesson 9.1 The Health Effects of Tobacco Lesson 9.2 Why People Use Tobacco Lesson 9.3 Treating and Preventing Nicotine Addiction While studying this chapter, look for the activity icon to: Whil • review vocabulary with e-fl ash cards and games • assess learning with quizzes and online exercises • expand knowledge with animations and activities and • listen to pronunciation of key terms in the audio glossary. www.g-wlearning.com/health/