3. Why does a smoker often cough? A tar sticks to the cilia B mucus gets thicker 80% C toxins irritate the lining 80% D bronchi restrict air flow

asked Feb 17, 2021 190k views

1 vote

3. Why does a smoker often cough?

A tar sticks to the cilia
B mucus gets thicker
80%
C toxins irritate the lining
80%
D bronchi restrict air flow

8.6k points

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5 votes

The answer would be D

Mpowroznik answered Feb 20, 2021

9.1k points

1 vote

Answer:

D is your answer. Hope that helps

Shalu answered Feb 23, 2021