What were three differences between North and South that caused animosity between the regions?

North was antislavery; South was pro-slavery.

North was business and trade oriented; South was agrarian.

North was Federalist; South was mostly Democratic-Republican.

North was mostly Democratic-Republican; South was Federalist

North was pro-slavery; South was antislavery

The answers are,

1. North was antislavery; South was pro-slavery.

2. North was business and trade oriented; South was agrarian.

3. North was mostly Democratic-Republican; South was Federalist

Explanation:

In fact, south was mainly pro Slavery because of their agricultural plantation system. This was the main reason behind the civil war. Apart from that, south being Federalist was another reason for the war.