Answer:
see below
Step-by-step explanation:
Eli Whitney's inventions and the geographic differences of each region helped develop the economies of the North and South, which led to sectionalism.
The cotton gin, which allowed for more efficient processing of cotton, was invented by Eli Whitney in 1794. It was invented in the South, where it was used to process cotton from that region. This invention helped develop the economy of the South by making it easier for them to produce cotton cloths.
The North had a different economy than that of the South. The North was primarily agricultural, while the South was primarily industrial. Because of this difference in their economies, there were significant differences in what each region produced and how they produced it.