Observation or experience rather than theory or pure logic.
The correct answer is False. The fall of Rome and Han China were similar because they both faced nomadic invasions that greatly contributed to their decline. Moreover, the nomadic Xiongnu, later forming another nomadic tribe called the Huns, invaded and attacked Han China, after it could no longer afford to pay tribute to them; this caused the dynasty to come to and end.
When the Federal Government supported the war effort without imposing wage and price controls. This caused the employment opportunities for women and minorities increased greatly.
There were a number of reasons Federalists opposed the Louisiana Purchase. One can assume some opposed it just because it was Jefferson who made the purchase, out of a kind of reflex. Others had heard wild stories about the land purchased, and thought the purchase a bad bargain. Some thought that the inclusion of Louisiana as the treaty was written would undercut the power of the states by not having each state vote, thus undercutting Federalist power. (Some Federalists in the eastern states specifically feared a shift in power to the west.)
http://www.enotes.com/homework-help/why-did-some-federalists-oppose-louisiana-purchase-21441
Comments if you have any questions. :)