An increase in efficiency
Representatives of Spain and the United States signed a peace treaty in Paris on December 10, 1898, which established the independence of Cuba, ceded Puerto Rico and Guam to the United States, and allowed the victorious power to purchase the Philippines Islands from Spain for $20 million.
Answer:
United States.
Explanation:
The United States was reluctant to join the war effort- congress specifically. Britain was left alone to fight Germany for most of the war. France was occupied by Nazis- so the most they could do was fight sporadic guerilla battles. The US finally joined the war after the bombing of Pearl Harbor.
Answer:
True
Explanation:
no one was powerful enough to reunify China under a single emperor. The result was the period of the Three Kingdoms