Answer:
It began after the stock market crash of October 1929, which sent Wall Street into a panic and wiped out millions of investors. Over the next several years, consumer spending and investment dropped, causing steep declines in industrial output and employment as failing companies laid off workers.
Explanation:
They caused the Harlem renassance, caused a growth in the populations of northern cities, and influenced the evolution of different music genres like jazz.
negotiation of wages and other conditions of employment by an organized body of employees.
I guess: Present Contineous Tense
