The industrial revolution helped deepen the differences between the north and south by?

I can see that there are no choices.

The industrial revolution deepened the difference between the North and South by making the North more advanced than the South, which still depended on agriculture.

Explanation:

The North became more capable in manufacturing different goods including war equipment. It also produced faster than the South such as more cottons, firearms, leather goods, etc. It is said that only 40% of the people in the Northern area focused on agriculture.

The South, on the contrary, even became left behind. It wasn't capable when it comes to manufacturing and around 84% of the people still relied on agriculture. However, it wasn't able to produce many crops from its labor-intensive ways compared to the North which used machinery.

i believe your answer is mountains.