A: Emphysema is a chronic obstructive pulmona | vedclass

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(A) 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

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Assertion and Reason both are correct and Reason is the correct explanation of Assertion.

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(A) 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.Since the damage to the alveolar walls is irreversible,it is a chronic obstructive disease.It is primarily caused by long-term exposure to cigarette smoke or other air pollutants.Therefore,the condition is preventable by avoiding such exposure.Thus,both the Assertion and the Reason are correct,and the Reason provides a valid explanation for the cause and prevention of the disease.

$A$: Emphysema is a chronic obstructive pulmonary disease,causing irreversible distension and loss of elasticity of the alveoli.
$R$: Emphysema is preventable if chronic exposure to smoke (cigarette and others) and pollutants is avoided.

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$A$: Emphysema is a chronic obstructive pulmonary disease,causing irreversible distension and loss of elasticity of the alveoli.$R$: Emphysema is preventable if chronic exposure to smoke (cigarette and others) and pollutants is avoided.