Describe how the crash of the stock market in the united states was able to cause problems in countries all over the world

The stock market crash of 1929 was not the sole cause of the Great Depression, but it did act to accelerate the global economic collapse of which it was also a symptom. By 1933, nearly half of America's banks had failed, and unemployment was approaching 15 million people, or 30 percent of the workforce.

Brainliest please!

d) he bring down boss tweed and tammany hall.