Question

How does smoking cause chronic obstructive pulmonary disease?

Answer 1

Smoking is the leading cause of chronic obstructive pulmonary disease (COPD). ... Smoking damages the air sacs, airways, and the lining of your lungs. Injured lungs have trouble moving enough air in and out, so it's hard to breathe.

Answer 2

HEY MATE!

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1). Smoking is one the main cause of chronic obstructive pulmonary disease.

2). Smoking destroys a person's air sacs and breathing path.

3). The damaged air sacs cause a block in air flow which finally results in chronic obstructive pulmonary disease.

Hope it helps you!