____________ is a substance in tobacco smoke that reduces the blood’s ability to carry oxygen.
(1 point)
Responses
Tar
Tar
Nicotine
Nicotine
Asthma
Asthma
Carbon monoxide
Carbon monoxide
(1 point)
Responses
Tar
Tar
Nicotine
Nicotine
Asthma
Asthma
Carbon monoxide
Carbon monoxide