Answer:The railroads created the first great concentrations of capital, spawned the first massive ... that united thousands of farmers and immigrants, and linked many towns and cities. ... This centralization of production made meat-packing an innovative industry, one ... Technological innovation accompanied economic development.
Explanation:
While it was true that western lands were somewhat more fertile than the now-depleted lands of the East, many of the pioneers were attracted to the frontier in order to speculate in land, i.e. to purchase large quantities of cheap government land and to sell it at a profit to later comers
The answer to your question is mercantilism. After the Renaissance, mercantilism was the economic policy of the new nations. This economic system was widely used in Europe in the fifteen hundreds and sixteen hundreds which favored equal trading of imports and exports. The national wealth was measured based by the amount of gold and silver.
The power is divided between the national and state governments
Their entry into the war boosted the morale of the other allied nations. Morale completely depleted seems how the war was ultimately a stalemate and lives were being lost needlessly. American entry into the war also discouraged the Axis powers, and later after America's entry the Axis powers began to drop deeper into fear. America was the turning point for the war. The Axis powers were winning and if it weren't for America, then the Axis powers would have prevailed and the world would not be the way it is today. (This is what I think about it, it might not be entirely correct.)