Prolonged and constant use of tobacco can weaken the user's immune system and increase the risk of many diseases.

Which disease makes the air sacs in the lungs less elastic, reducing their ability to absorb oxygen?
A.chronic bronchitis
B.emphysema
C.lung cancer
D.oral cancer

Question

Prolonged and constant use of tobacco can weaken the user's immune system and increase the risk of many diseases.

Which disease makes the air sacs in the lungs less elastic, reducing their ability to absorb oxygen?
A.chronic bronchitis
B.emphysema
C.lung cancer
D.oral cancer

spacemountain · Answer

Whats your best guess?

anonymous · Answer

Well you can narrow it down to one answer choice based on the names of the diseases.

The first effects the bronchus
The third affects the lungs
And the fourth affects the mouth.

That's all given from the names.
A quick google search of emphysema will bring up a match of the listed symptoms