__(T)__    1.    Cigarettes release carcinogens which cause many forms of
                        cancer.

__(F)__     2.    The least harmful compound in cigarettes is tar.

__(T)__     3.    Tar from cigarettes is the main cause of emphysema.

__(F)__     4.    Carcinogens are the only harmful substance in cigarettes.

__(T)__     5.    The organ most affected by smoke is the lungs.

__(T)__     6.    Bronchitis and emphysema are chronic diseases of the
                         lungs associated with smoking.

__(F)__     7.    The effects of bronchitis are more life-threatening than
                        those of emphysema.

__(F)__     8.    Only smokers can get emphysema.

__(T)__     9.    The carcinogens in cigarette smoke can cause cancer in
                        the lungs, nose, lips, mouth, tongue, throat, and esophagus.

__(T)__    10.    Smoking damages the heart and cardiovascular system.