Answer:
As the North industrialized rapidly between 1820 and 1860, railroads helped create --and prospered from -- the rise of factory production and diversified large-scale agriculture. In the South, railroads played a marginal role in the cotton and tobacco economy.
It was primarily "(4) decreasing population in cities of the South," that led to agricultural overproduction <span>and falling farm prices during the 1920s, since many people were moving north in order to find better job opportunities. </span>
Hello! I believe the answer is the last one. Supported democratic South Korea against communist backed North Korea. Hope this helps!
In the 1970’s, the federal government set forth legislation intended to monitor research activities because humans in the past had been treated unethically.
