Final answer:
White flight is the term used to describe the migration of economically secure white people from racially mixed urban areas to suburbs, causing significant social and economic changes.
Step-by-step explanation:
White flight is a term used to describe the tendency of white residents to abandon a neighborhood as soon as minority families begin to purchase homes in that area. It refers to the migration of economically secure white people from racially mixed urban areas and toward the suburbs. This phenomenon occurred throughout the twentieth century in the United States. White flight has significant social and economic implications for both the neighborhoods left behind and the suburbs that receive an influx of white residents.