Why does smoking affect oxygen supply to the body?
A. haemoglobin fails to bind with O2
B. haemoglobin binds with carbon monoxide
C. Nicotine makes the heart heat faster
D. Blood vessels are narrowed
Answer:B
Why does smoking affect oxygen supply to the body?
A. haemoglobin fails to bind with O2 B. haemoglobin binds with carbon monoxide C. Nicotine makes the heart heat faster D. Blood vessels are narrowed