Answer:
New Economic Policy (NEP), the economic policy of the government of the Soviet Union from 1921 to 1928, representing a temporary retreat from its previous policy of extreme centralization and doctrinaire socialism. ... Money was reintroduced into the economy in 1922 (it had been abolished under War Communism).
Kush was weakened by the loss of trade.
b ) The ships were at the mercy of the weather
The journey from Africa to the West Indies or North America Usually took about two months. However, the journey would take longer due to vagaries of bad weather that made navigation challenging