The southerners did . Northerners strove for peace they tried to preserve the Union. I hope this helps
The correct answer is <span>tensional stresses and normal-fault movements
As the fault movements occurred, the mountains started rising and becoming taller and taller due to pressure from various fault lines. In a normal fault, the hanging</span><span> wall block above an inclined fault plane moves downward relative to the other block which causes the mountains and valleys to form which happened in the west.</span>