Final answer:
By the 1970s, unemployment, poverty, and crime were major issues in inner-cities, exacerbated by white flight and reduced tax revenues. Gentrification also began, displacing low-income residents as urban areas were developed for higher-income brackets.
Step-by-step explanation:
By the 1970s, inner-cities were increasingly plagued by various issues. Among them, unemployment stood out as a significant problem that exacerbated other social challenges. As more affluent and white residents moved to the suburbs in a process known as "white flight," urban centers began to face declining tax revenues, which compromised public services and infrastructure. This urban decay led not only to unemployment but also to poverty and crime. At the same time, a process called gentrification began to take place, where investment in urban neighborhoods pushed out the low-income residents as property values and living costs increased, leading to further displacement and social division.