Question

    What is the main cause of

    emphysema?  
    A Smoking Correct Answer Incorrect Answer
    B Obesity Correct Answer Incorrect Answer
    C High cholesterol Correct Answer Incorrect Answer
    D Lack of exercise Correct Answer Incorrect Answer

    Solution

    Smoking damages the air sacs in the lungs, leading to emphysema, a type of chronic obstructive pulmonary disease (COPD).

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