Gold was found in 1849 and a lot of people moved west in order to mine it in hopes of striking it rich.
The drug prevention has it major limitation and that is: the drug prevention does not clearly states the goal that the drug is trying to achieve. It is the major limitation for this is the question that has always be unclear and unexplained as to how and why should this act be proceeded.
The answer is C, Irrigation Canals.
Cans,bottles,plastic, and paper