Cannabis stocks saw a boost on Tuesday, following the release of three separate surveys that showed that Americas are increasingly in favor of cannabis legalization. Presently, 10 states, as well as D.C., have legalized recreational cannabis while 33 states that have given medicinal cannabis the green light. The North American legal cannabis market generated $12 billion last year, and analysts forecast that it will hit $25.5 billion by 2021, according to a report by Cannabis Business Plan. The rapid growth of this budding industry is fortified by increased legalization and the increased use of cannabis in medical applications. As cannabis continues to produce a more favorable public opinion, investors seeking opportunities may benefit from keeping tabs on the cannabis sector.Are These Marijuana Stocks Getting Ready To Rally?