Assertion : Bacteria and other particles pass down the wind pipe and enter the lungs…

Biology · NEET · NTA ExamsBreathing and Exchange of Gases

         Assertion : Bacteria and other particles pass down the wind pipe and enter the lungs, causing damage to the tissue.
Reason : Smoking reduces ciliary effectiveness.
  [AIIMS 2009]
  1.  If both assertion and reason are true and the reason is the correct explanation of the assertion.
  2.  If both assertion and reason are true but reason is not the correct explanation of the assertion.
  3.  If assertion is true but reason is false.
  4.  If the assertion and reason both are false.

Answer

(A) If both assertion and reason are true and the reason is the correct explanation of the assertion.

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