Here is the questions that I had to answer: What social, political, and economic changes pulled the North and the South further apart? What was the final determining factor that led to Southern secession? Here is how I answered these two questions:

Question

The economic aspect was that the South was more of an agricutural economy while the North had more trades and skills. The social aspect was that both the North and South were trying to earn money and use the land to their advantage, but their differences in business led to misunderstandings and judgement.
The last straw was when Lincoln became President. The South was worried that his views and power would led to a ban on slaves which played a major role in the plantations of the South.
Is this correct? Thanks.