| Read the assertion and reason carefully to mark the correct option out of the options given below: |
| Assertion : Smokers are prone to respiration related diseases. |
| Reason : Tobacco smoke destroys cilia present in respiratory tract. |
A) If both assertion and reason are true and the reason is the correct explanation of the assertion.
B) If both assertion and reason are true but reason is not the correct explanation of the assertion.
C) If assertion is true but reason is false.
D) If the assertion and reason both are false.
E) If assertion is false but reason is true.
Correct Answer: A
Solution :
Smoke and heat destroy cilia in respiratory tracts in long run, therefore dust particles enter easily into the respiratory passage and lungs in heavy smokers causing TB. Cigarette is the major cause of chronic bronchitis and emphysema. chronic cough, sputum production and breathlessness are much more common in smokers.
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