Answer:
Poor air and water quality, insufficient water availability, waste-disposal problems, and high energy consumption are exacerbated by the increasing population density and demands of urban environments. Strong city planning will be essential in managing these and other difficulties as the world's urban areas swell.
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Answer:
The civil rights movement came to national prominence in the United States during the mid-1950s and continued to challenge racial segregation and discrimination through the 1960s.
Explanation:
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