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The top documents tagged [lungs smoking]
Documents
Smoking and Your Lungs. Human Respiratory System The human respiratory system consists of nasal passages, pharynx. larynx, trachea, bronchi, bronchioles,
287 views
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12/4/14 What are some reasons why people may start smoking? ¿Qué es algunas razones por qué personas fuman cigarrillos?
217 views
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The Dangers of Tobacco. What is Tobacco? Tobacco is a plant that contains nicotine. Its leaves are dried and then made into cigarettes, cigars, smokeless
216 views