What four kinds of population shifts in metropolitan areas since 1950?

Since 1950, metropolitan areas have experienced several significant population shifts, including suburbanization, where populations moved from urban centers to surrounding suburbs; gentrification, which involves the influx of wealthier residents into lower-income neighborhoods, often displacing original residents; population declines in certain industrial cities due to job losses and economic changes; and increased diversity, as migration patterns have brought in a wider array of cultural and ethnic groups. These shifts have reshaped the demographic and socioeconomic landscapes of metropolitan regions across the United States.