Question

how does tobacco smoking lead to oxygen deficiency​

Answer 1

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Smoking of tobacco leads to the reduction of the concentration of haemoglobin -bound oxygen in blood and increases carbon monoxide (co) content which directly causes oxygen deficiency in the body.

Answer 2

Answer:

Carbon monoxide present in tobacco smoke binds haemoglobin of RBCs faster than oxygen thus decreasing the oxygen- carrying capacity of haemoglobin