Write an essay arguing for your preferred causes or effects for an event, a phenomenon, or a trend. Choose a subject that invites you to speculate about its causes or effects: why it may have happened...

Write an essay arguing for your preferred causes or effects for an event, a phenomenon, or a trend. Choose a subject that invites you to speculate about its causes or effects: why it may have happened or what its effects may be. Research the subject, gathering detailed information from appropriate sources, and present that information in a clear, logical way. Establish the existence and significance of the subject. Convince readers that the causes or effects you propose are more plausible than the alternatives.