Explain how the railroad system contributed to the expansion of industry during the 18th century. (Need answer ASAP)

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.

Explanation:

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.

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whose power in the senate is equal to the power of the speaker of the house?