Answer:
all of the above, unless you mean not medicinal drugs, ten that would be street drugs, hallucinogens,and stimulants
Steroids dissolve fatty tissue in the brain.
Inhalants influences moods
And Stimulant speed up bony function.
I think it's hinge I'm not so sure though :/
How often something happens
Answer:
A carcinogen can be described as any substance which can lead to cancer.
Various types of pollution produce certain kinds of ions such as metal ions which are capable of producing cancer in humans.
Studies have shown that toxic metals from waste when disposed in lakes from industries or plant areas causes the toxic metals to get accumulated in the bodies of water animals such as the fishes. These organisms when consumed by humans can cause cancer.
