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Standard XII
Biology
Question

Assertion :Emphysema disease is very common in Kanpur and Kolkata. Reason: It is a disease of respiratory tract occuring due to pollution.
  1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
  2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
  3. Assertion is correct but Reason is incorrect.
  4. Both Assertion and Reason are incorrect.

A
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
B
Assertion is correct but Reason is incorrect.
C
Both Assertion and Reason are incorrect.
D
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
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Solution
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Kanpur is the most polluted city in the country, with high quantities of respirable suspended particulate matter (RSPM) in the air, according to the results of a survey carried out by the 'Central Pollution Control Board' (CPCB) in 2002.
Chronic obstructive pulmonary disease (COPD) is a condition characterized by narrowing of the airways, but these changes are permanent rather than reversible. COPD is caused by exposure to pollutants that produce inflammation. Thus, the correct answer is option B.

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