The Balkans were referred to as the "Powder Keg of Europe" in the period before World War I because of their * manufactoring ability
stockpile of weapons
nationalistic rivalries
economic strength
TIMED TESTT

What was one of the advantages that the united states had over europe regarding the industrial revol the united states had a continuous supply of potential factory worker the united states imported workers from europe to work in factories. the workers in the united states were more skilled than the workers in europe the united states didn't actively participate in the industrial revolution. instead they imported most of their goods from other countries.