What conclusion can be drawn about the advantages and disadvantages of the North and South at the start of the Civil War? 1-The South had more factories
2-The North exported more goods to Europe,
3-The North had a more industrialized economy
4-The South's population was impacted by the Underground Railroad

3-The North had a more industrialized economy

Explanation:

The conclusion that can be drawn about the advantages and disadvantages of the North and South at the start of the Civil War is:

"the North had a more industrialized economy"

The economy of the North was based on industry. They were responsible in building factories and also maufactured products to sell. They had greater infrastructure. With the availability of railways, they shipped supplies to the place they needed it most. For the South, they lacked railroad investment.

a.

congress passed laws allowing for free passage between states.