How was World War I a cause of the worldwide depression in the 1930s

Many European nations faced very heavy debt after WW1 leading to economic strain

Explanation:

I just took the quiz

The Great Depression was a global economic crisis that may have been triggered by political decisions including war reparations post-World War I, protectionism such as the imposition of congressional tariffs on European goods or by speculation that caused the Stock Market Collapse of 1929