The need for skyscrapers were important because more people were moving to cities so they need more room.
Answer:
The US became involved in new international alliances.
Explanation:
The united states couldn't let the other world power (Soviet Union) obtain any ground or allies, and in order to stop the spread of communism the US threw themselves at every international conflict possible.
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Answer:
In the early 20th century, politicians of the Democratic and Republican parties, Lincoln–Roosevelt League Republicans (in California) and Theodore Roosevelt's Progressive ("Bull Moose") Party all pursued environmental, political and economic reforms.
