Why did Additonal states secede after the battle of fort Sumter

The second group of southern states seceded after the attack at Fort Sumter. Four additional states left at this time. These states left because they had concerns about what would happen to slavery now that the fighting had begun. They waited until the Civil War began before leaving the Union.

Explanation:

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the graphs indicate that few people in bolivia work in industry, as that is the least expressive sector shown in the respective graphic.

a. favoring native born americans over immigrants.