From which part of the plant is opium obtained?

Which of the following plants possesses hallucinogenic properties?

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?

What are the common warning signals of drug and alcohol abuse in adolescents?

Tobacco inhalation causes:

Which substances are commonly used by individuals to stay awake at night?