Why did the wartime alliance between the united states and the soviet union unravel?

The United States and the Soviet Union disagreed on the future of Eastern Europe.

1.the population change is near or at replacement level.

4. the birth and death rates are balanced.

6. sweden is most likely a developed country.

the tariff was created to protect industry in the northern part of the united states. industries in the north were being driven out of business by imported goods that were priced at a low rate. the goal was to protect these industries   by taxing the goods.