How did the Southern secession lead to the Civil War?

It led to the civil war as the 16th presdient believed america would be doomed if they had let the south leave the United states thus causing the north to fight for the south and the massive output of agriculture from the south which the north couldnt survive without.

Explanation:

answer; the correct answer is (composition);

6.3%

explanation:

the acceptance rate for yale university is 6.3%. this means that only 6 percent of people who apply actually get accepted!