Working with the Text1. What is the major component of tobacco smoke?2. What are carcinogenic chemicals?3. List some uses of tobacco4. What is the difference between an active smoker and ap5. List five harmful effects of smoking.

Working with the Text1. What is the major component of tobacco smoke?2

1.	Working with the Text1. What is the major component of tobacco smoke?2. What are carcinogenic chemicals?3. List some uses of tobacco4. What is the difference between an active smoker and ap5. List five harmful effects of smoking.
Answer» <p>1)Some smoke components, such as carbon monoxide (CO), hydrogen cyanide (HCN), andnitrogen oxides, are gases. Others, such as formaldehyde, acrolein, benzene, and certain N-nitrosamines, are volatile chemicals contained in the liquid- vapor portion of the smoke aerosol.</p><p>2)Acarcinogenis any substance, radionuclide, or radiation that promotes carcinogenesis, the formation of cancer. ... Although the public generally associatescarcinogenicitywith syntheticchemicals, it is equally likely to arise in both natural and syntheticsubstances.</p> <p>3)Tobacco contains the alkaloid nicotine, which is astimulant, and harmala alkaloids. Dried tobaccoleavesare mainly used for smoking in cigarettes, cigars, pipe tobacco, and flavored shisha tobacco. They can also be consumed as snuff, chewing tobacco, dipping tobacco and snus.</p> <p>5)increased risk of stroke and brain damage.</p><p>eye cataracts, macular degeneration, yellowing of whites of eyes.</p><p>loss of sense of smell and taste.</p><p>yellow teeth, tooth decay and bad breath.</p><p>cancer of the nose, lip, tongue and mouth.</p>