Which drugs are obtained from $Cannabis \text{ } indica$?

In persons addicted to alcohol,the liver gets damaged because it

The artificial drug used as a sedative and to reduce anxiety,which also induces sleep,is:

Nicotine intake stimulates the $...A...$ to release $...B...$ and $...C...$ into blood circulation. This leads to an increase in $...D...$ and an increase in $...E...$. Here $A$ and $E$ refer to:

Select the incorrect statement regarding cannabinoids.

Withdrawal symptoms of drug addiction are