Delta-9-tetrahydrocannabinol (thc) is psychoactive constituent.

Answer is: Cannabis (marijuana).
Tetrahydrocannabinol is one of the cannabinoids. Cannabis is a psychoactive drug from the Cannabis plant, this drug have medical use. It is used to treat anorexia and for vomiting in people undergoing chemotherapy. THC has a very low solubility in water and good solubility in alcohol.

Currently, as of february 2016, an american traveling in france would be by the exchange rate. the weakness of the euro and the strength of the us dollar means that items in france cost less to an american than they otherwise would. of course, if this trend reverses and the us dollar weakens and the euro strengthens, such as was happening in early 2008, an american traveling in france would have an adverse experience because items would cost relatively more.

Sector is best defined as (part).