Final answer:
The 1920s were called the Roaring Twenties due to cultural and social changes, not noisy railroads.
Step-by-step explanation:
The 1920s were called the Roaring Twenties because of the cultural and social changes that occurred during that period. It was a time of economic prosperity, rapid industrialization, and technological advancements, rather than noisy railroads. The term 'roaring' reflects the energetic and lively nature of the era, with increased consumerism, jazz music, flapper fashion, and the rise of entertainment industries like cinema and radio.
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