Which one of the following is a correct match?

Nicotine is an alkaloid that enters the body through smoking. How many of the following characteristics are associated with its effects?
$(i)$ Increases blood pressure
(ii) Decreases respiratory rate
(iii) Causes cancer of the lungs,throat,and bladder
(iv) Induces allergies
$(v)$ Can cause emphysema
(vi) Decreases the level of $O_2$ in the blood

Identify the correct statements regarding drugs and their characteristics:
$(1)$ $Datura$ induces hallucinogenic properties.
$(2)$ $Atropa$ $belladonna$ induces hallucinations.
$(3)$ Opium is obtained from the unripe capsules of the poppy plant.
$(4)$ Marijuana is obtained from $Cannabis$ $sativa$.
$(5)$ $LSD$ is useful as a medicine.

The sensitive period for the psychological and anthropological development of an individual is:

Which of the following drugs is a stimulant?

Which of the following drugs is extracted from the latex of the poppy plant $Papaver$ $somniferum$,is generally taken by snorting and injection,acts as a depressant,and slows down body functions?