Smack is a drug obtained from the

With which receptors do opioids bind?

$L.S.D.$ is

Identify the correct statements from the following:
$(i)$ With repeated use of drugs,the tolerance level of the receptors present in the body increases.
$(ii)$ Youngsters often use drugs repeatedly due to financial gains.
$(iii)$ Lack of proper guidance or counseling leads individuals to become addicts.
$(iv)$ Repeated use of alcohol leads to 'withdrawal syndrome'.

Which of the following is a synthetic stimulant?

What is the color of the latex obtained by making an incision in the unripe capsules of the poppy plant $(Papaver \text{ } somniferum)$?