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Collect more information on the bad effects of smoking and write it in your science diary. |
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Answer» Cigarette smoke contains poisonous substances. They badly harm the respiratory system. Carcinogens present in the smoke cause cancer in respiratory system. Bronchitis and Emphysema are diseases prevalent in smokers. Tobacco smoke injures every part of the respiratory system. It injures the lining of the nose, throat, trachea and lungs. Tobacco smokers, therefore , face a higher risk of lung cancer that non-smokers. |
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