Following WWI in North America and most of Europe there was a recession that led to economic decline. The recession in the United States did not last long and was followed by nearly a decade of major economic growth that made the United States the most powerful economy in the world.
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.
Answer:
revolutions happen when two or more groups cannot come to terms within a normal decision making process traditional for a given political system, and simultaneously have enough resources to employ force in pursuing their goals.
Explanation:
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