Which statement is true? Connections between nations of the world have increased in recent history. Political boundaries seldom change. Culture has little significance in world conflict. The dissolution of the USSR had no impact on other nations.

4-c-connections between nations of the world have increased in recent history

Explanation:

answer; (wisconsin);

explanation: the badger state. this nickname originally referred to the lead miners, of the 1830s, who worked at the galena lead mines in illinois. these mines were in northwestern illinois close to the borders of wisconsin and iowa. the wisconsin miners lived, not in houses, but in temporary caves cut into the hillsides.

81 is a composite number.