What would most likely account for the disparity in number of factories in the union and confederacy?

The difference in number of factories iis most likely attributable to the fact that their economies (in general) were based on different things.The Confederacy was more agricultural, and the Union more industrial. Even in the agricultural sector, Northern farmers were out-producing their southern counterparts in several important areas, as Southern agriculture remained labor intensive while northern agriculture became increasingly mechanized

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