Question

______ is a substance in tobacco smoke that reduces the bloods ability to carry oxygen. (1 point) ○ tar ○ nicotine ○ asthma ○ carbon monoxide

Explanation:

Tar in tobacco smoke damages lung tissue; nicotine is an addictive stimulant; asthma is a respiratory condition, not a tobacco substance. Carbon monoxide binds to hemoglobin in red blood cells more strongly than oxygen, lowering the blood's oxygen-carrying capacity.

Answer:

D. Carbon monoxide