Respuesta :

Many immigrants from Europe began working in factories and producing goods used by people in the North. Many factories began producing textiles (cloth) with the cotton grown in the South. The economy of the South was based on agriculture. More slaves were now needed to pick the cotton.

As population and migration increased in the West with frontier settlement as well as the desire fo r more wealth, railroads helped to link both the eastern/central part of the United States with the desire to generate new revenue streams, while settlers migrated in the hunt for new land. There had to be a way to link both ends for the continent, and this was seen in the railroad. The transcontinental railroad linked both parts of the nation. Spurned by Congressional allocation of funds, corporations built the railroad in exchange for land rights in the new West. As more railroads were built, it helped to expand the nation and the West Industries cropped up in the West and used the railroads to link industry to markets in the Eastern part of the nation.