Sales on American goods by the end of the 1920s ? (leading to the Great Depression)

Sales had dramatically decreased.

Explanation:

The government passed the Tarriff Act which heavily penalized imported products from other countries in order to stop them from outcompeting American products. This backfired and other countries did it back and American farmers and companies were left with an oversurplus they could not sell.

the revolution instituted a short-lived roman republic.

it would be  

germany had to pay all damages related to the war.

and i think

germany had to take sole responsibility for the war.