Answer:
The Spanish-American Conflict taught us a lot of things. In the years following the war, the army underwent changes to its facilities, machinery, and organizational structure. The structure of the entire volunteer system was altered under Secretary of War Elihu Root.
Answer— Federal district courts are the workhorses of the federal judiciary. Just about every civil or criminal case heard in the federal court starts at a district court level. District Court judges review petitions hear motivation, hold trails, issue in injunctions, and keep the wheels of justice spinning.
Agricultural Revolution (begins in 18th c.)--Industrial Revolution (begins in late 18th c)--Urbanization--World population hits 1 billion (1804)--Flu Pandemic (1918)
Not sure if "dramatic population growth in developing countries" is a separate choice or part of the population hitting 1 billion. Population growth occurred through this whole time period but particularly after the Agricultural Revolution as it produced better food more cheaply. This boom would allow for more people to be available to work in industry as it develops.
Your answer is South Dakota