Answer:
They had lots of factories. For example in 1860, the North manufactured 97 percent of the country's firearms, 96 percent of its railroad locomotives, 94 percent of its cloth, 93 percent of its pig iron, and over 90 percent of its boots and shoes. The North had twice the density of railroads per square mile. This gave them an advantage. Hope this helps:) Stay Safe!!!
Explanation:
