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Why is smoking a bad habit? - Biology

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Question

Why is smoking a bad habit?

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Solution

Smoking a bad habit because

  1. Smoking tobacco is the greatest risk factor for cancer mortality.
  2. Tobacco smoke has more than 7000 chemicals and at least 250 are known to be harmful and more than 50 of them are known to cause cancer.
  3. Tobacco smoking causes many types of cancers, including cancers of the lung, oesophagus, larynx (voice box), mouth, throat, kidney, bladder, pancreas, stomach, and cervix. 
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Chapter 10: Human Health and Diseases - Exercises [Page 244]

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Balbharati Biology [English] 12 Standard HSC Maharashtra State Board
Chapter 10 Human Health and Diseases
Exercises | Q 3.05 | Page 244
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