Which country was never a part of the USSR? Select one or more answers: Mongolia Poland Tajikistan Ukraine Azerbaijan Belarus

The correct answer is Poland.<br /><br />Poland was never a part of the USSR. The USSR, or the Union of Soviet Socialist Republics, was a socialist state that existed from 1922 to 1991. It was composed of multiple republics, including Mongolia, Tajikistan, Ukraine, Azerbaijan, and Belarus. However, Poland was never a part of the USSR. It was an independent country during the time of the USSR and was located in Eastern Europe.