What percentage of college students use marijuana and cocaine? Explain the results of the National survey on Drug Use and Health on the overall rates of marijuana and cocaine use among different ethn

 What percentage of college students use marijuana and cocaine? Explain the results of the National survey on Drug Use and Health on the overall rates of marijuana and cocaine use among different ethnic group such as whites compared to Africans Americans and Hispanic in the US. How much is the US spending per year on federal drug-control efforts? What you can do as a health educators to prevent overuse of marijuana and cocaine?