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Explain urbanization and industrialization enabled the dramatic change in american culture?

What impact did new technologies in the assembly and manufacturing have on the auto industry in the 1920s

Write two paragraphs to explain how the cold war changed after the 1960s. first, identify the ways it changed during leonid brezhnev's leadership in the 1970s. then, explain how the cold war changed when ronald reagan was in office in the early 1980s. include supporting facts and details from the text in your response.