Symptoms like anxiety,shakiness,nausea,and sweating are associated with which of the following conditions?

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'.

$LSD$ (Lysergic acid diethylamide) is prepared from:

Drugs,shocks,and psychotherapy are the treatments of:

Which substances are athletes increasingly using to enhance their performance?

From which plant is cocaine obtained?