When young people migrate from a rural area which probably already is suffering from a low birthrate, this effectively eventually can create a "lack of life" in a certain place where after a decade or a few decades, a certain rural area can actually die out due to not enough young people being there anymore.
the answr is C. the flight of former slaves from the south
Answer:
C)
spread of disease pathogens among urban populations
Explanation:
By February 1854, anti-slavery Whigs had begun meeting in the upper midwestern states to discuss the formation of a new party. One such meeting, in Wisconsin on March 20, 1854, is generally remembered as the founding meeting of the Republican Party. Hope I Helped! :)
It is b: gave them lots of land to build