What caused relations between the United States and the Soviet Union to begin to change in the early 1980s? Select two answers.

B. Leonid Brezhnev died.

C. Ronald Reagan became president.

Explanation:

But the two events that caused relations between the U.S and the USSR to begin to change in the early 1980's were that Leonid Brezhnev died and Ronald Reagan became president.

the effect of the ming leaders banning ships with more than two masts was that there was no further construction of ships masts, because there was a surplus. ming emperors disallowed foreign exploration

the right answer is the end of world war ii

after the end of a global wwii all the nations involved, in an attempt to create an organization to maintain world peace. this agreement would work settling international disputes via negotiation and arbitration instead of leading the issues escalate to another war.