Home country of settlers at roanoke jamestown and plymoth

Choose one of these concerns and write a short paragraph about its impact on africa. what has caused this problem to occur, and how has it impacted people who live there?

What is affirmative action as a social program intended to accomplish? do you think it has been successful? what are some specific examples that you can offer to support your answer? this is for my multicultural studies class i need asap !

Martha participates in a research study in order to receive extra credit for her psychology class. when she arrives in the research office she is given a can of what looks and tastes like beer, but which actually contains no alcohol. in the adjoining room martha's classmate karen is also participating in the study. karen receives a can of alcoholic beer. if the experiment was designed to test the effects of alcohol on concentration, then who is exposed to the independent variable?