How did the issue of slavery divide the union

Why did people from washington ride out to manassas junction to view the battle?

99 points explain the causes and effects of the japanese bombing of pearl harbor in 1941. make sure to explain 3 causes and 3 effect in detail.

How were the okanogan highlands formed? a. by subduction, which caused huge folds in earths surface b. as a result of retreating glaciers carving great valleys into the earth c. when molten rock from under the earth approached the surface d. when the collision of volcanic island chains and ocean rocks formed new earth