Answer:
Advances in assembly line mass production
Large-scale production reduces costs of automobiles
Growth in personal automobile ownership
Commuters face traffic congestion
Explanation:
The US navy was successful in driving back the Japanese forces in the Pacific was because the US was able to replace ships, airplanes, and soldiers faster than Japan could.
Germany, Austria-Hungary, Turkey, Ottoman empire and Bulgaria were the central powers. These were also known as the quadruple alliance.