If Mona is a smoker, but decides to stop smoking, what happens to the difficulty her lungs experience in removing chemicals from the air?
increase decrease
A B
When a person smokes there are chemicals released by the tobacco that enter the lungs. Because the lungs have to work harder to remove the chemicals, the body has to work harder to get the air needed to survive.
lungs have to work harder to remove the chemicals
harder
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MORE
chemicals released by the tobacco that enter the lungs
increase
decrease
difficulty
difficulty
difficulty