16 . The Central Uplands is a region of hills and low plateaus loaded with raw materials .
17 . The mountain ranges in the north of Russia act as a significant barrier to the flow of Arctic air masses , resulting in a warmer climate than might otherwise be expected .
18 . Moscow lies at the heart of the Central Industrial Region .
19 . The United Kingdom , a charter member of the European Common Market , withdrew because of a disagreement in 1973 .
20 . The balkanization of a region implies its political unification .
21 . Which of the following statements about the Soviet Union is false ?
22 . Which of the following statements about Moscow is false ?
23 . Which of the following is not found in Russia west of the Urals ?
24 . In their eastward push , the Russian Empire eventually reached Alaska but never entered the conterminous United States ( Lower 48 states ).
25 . This exclave of Armenia is 75 percent Armenian but is located within Muslim Azerbaijan .