How was the economy in the northern united states different from the economy in the southern states, prior to the civil war?

a) the economies in the north and south were basically the same.

b) the north was mostly agricultural with large plantations. the south was mostly industrial with many factories.

c) the north was mostly industrial with many factories. the south was mostly agricultural with large plantations.

d) the north relies on slaves to work in factories, while the south did not use slaves much.

C) The North was mostly industrial with many factories. The south was mostly agricultural with large plantations.

interdependence is when all participating groups and individuals depend on each other. if you depend on one anothers goods, you end up trading in order to get the items you're looking for. (for ex: if i have food and you have water, we trade in order to depend on each other to live)

geography

this is because warmer climates often don't get people sick from the flu and regions where it was often colder more people received the flu. hope this if you need more reasoning i am here to