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7.Human Health and Disease
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Smoking addiction is harmful because it produces polycyclic aromatic hydrocarbons, which cause
A
Reduction in oxygen transport
B
Increase in blood pressure
C
Cancer
D
Retardation of growth of foetus
Solution
(c) Polycyclic aromatic hydrocarbons are carcinogenic which cause cancer.
Standard 12
Biology
Similar Questions
Match the columns :
| Column – $I$ | Column – $II$ |
| $(a)$ Pre erythrocytiC cycle | $(1)$ Meta cryptomerozoites enters RBC and becomes spherical in shape. |
| $(b)$ Exo-erythrocyticcycle | $(2)$ sporozoites in saliva are introduced to human blood |
| $(c)$ Endo-erythrocytic cycle | $(3)$ Breaks the liver cells and comes our of blood. |
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