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Q.

Air pollution can result in Emphysema, which is :

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a

Chronic damage to air sacs or alveoli leading to abnormal reduction in respiratory surface area

b

Persistant inflammation and damage to the cells lining the bronchi and bronchioles

c

An allergic reaction causing muscle spasms in the bronchial walls

d

Damage to any Lung tissue causing increase in elasticity of the air sacs

answer is A.

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Detailed Solution

Emphysema is a chronic disorder in which alveolar walls are damaged due to which respiratory surface is decreased. One of the major causes of this is cigarette smoking.
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