The main reason why the US joined the war was because multiple attack on passenger and merchant ships with submarine attacks .The final straw was when the RMS Lusitania by a German u-boat going to Liverpool England .
The answer of this questions is D
Answer:
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Explanation:
Between 1920 and 1929, the country's overall wealth more than quadrupled, ushering many Americans into an opulent but unfamiliar "consumer culture." People from coast to coast bought the same things, listened to the same music, danced the same dances, and even used the same lingo (due to countrywide advertising and the growth of chain businesses).
Many Americans were uneasy with this new, urban, and even racy "mass culture;" in fact, the 1920s brought more tension than joy to many–perhaps even most–Americans.
Prohibition. Prohibition was a national prohibition on the sale, manufacture, and transportation of alcohol that lasted from 1920 to 1933 and had ramifications in every aspect of everyday life, from law and economics to religion and entertainment. It was one of America's most significant cultural changes, for better or worse.
The main causes of America's economic boom in the 1920s were technological advancements that led to mass production of goods, electrification of the country, new mass marketing techniques, the availability of low-cost credit, and increased employment, all of which resulted in a large number of consumers.
