Missouri compromise 1820 compromise of 1850 Kansas Nebraska act 1854 how to each of the action pack the spread of slavery within the United States a. Eat at left the decision regarding the spread of slavery at to the individual states. A. Each act left the decision regarding the spread of slavery to the individual states. B. Eat apples an attempt to balance the demands of northern and southern states. C. Eat act help to maintain a balance between free and slave states. D. It’s at limited slavery to places where it already existed.