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Comments Share File Home Insert Draw Design Layout References Mailings Review View Help O PROTECTED VIEW Be careful=files from the Internet can contain viruses. Unless you need to edit it's safer to stay in Protected View Enable Editing x Title: Chapter 21: Therapeutic Agents for the Respiratory System Homework Assignment Think Critically (1 pt each) 1. Smoking has increased dramatically among teenagers over the years. What do you think has been a contributing factor to the increase? 2. Pseudoephedrine now must be sold by a pharmacist, and customers must fill out a log book for their purchase. Why is the sale of pseudoephedrine now controlled? 3. What are the health benefits of having plants in your home and office? Short Answers (0.5 pts each) 1. List the primary functions of the upper-respiratory tract. 2. List the common symptoms of a cold and two preventive efforts to help ward off a cold. 3. List the common types of drugs used to treat the symptoms of a cold. 4. List nondrug treatments for rhinitis caused from allergen exposure.