Answer:
yellow river is where they first developed and it developed of rich fertile soil and irrigattion water
One of the most controversial terms of the treaty was the War Guilt clause, which explicitly and directly blamed Germany for the outbreak of hostilities. The treaty forced Germany to disarm, to make territorial concessions, and to pay reparations to the Allied powers in the staggering amount of $5 billion.
Answer:
language barriers,
unfriendliness of the people
poor transport system
poor communication system
illeteracy