coursework. n. 1. (Education) written or oral work completed by a student within a given period, which is assessed as an integral part of an educational course.
More than the infusion of population, colonist John Rolfe's discovery of a profitable cash crop-tobacco-sealed the fate of the Virginia colony. Economically, tobacco became to the Chesapeake what sugar was to West Indies and silver was to Mexico. However, tobacco required a great deal of labor to cultivate.
Coca, opium poppies and cannabis are significant black market cash crops, the prevalence of which varies. In the United States, cannabis is considered by some to be the most valuable cash crop.