Why did the united states and the soviet union become allies during world war ii?
their governments had been very friendly toward each other before the war.
they both were attacked by nazi germany or germany's allies.
they both hoped to make profits from each other.
they had a treaty before the war began saying they would work together in a war.

Common enemies make strange bedfellows of nations.

The correct answer is: They both were attacked by Nazi Germany or Germany's allies.

an expansion is one of two basic business cycle phases; the other is contraction. the transition from expansion to contraction is a peak, and the changeover from contraction to expansion is a trough.

the correct answer is:   the domino theory states that if one country in a region came under the influence of communism, then the surrounding countries would follow in a domino effect.