HEL There was a tension on North side of USA during Civil war because of slavery because some people on north didn't really like Black people but some people were ok with it. please give me some events that shows tension of this problem

Slavery played the central role during the American Civil War. The primary catalyst forsecession was slavery, especially Southern political leaders' resistance to attempts by Northern antislavery political forces to block the expansion of slavery into the western territories.

the answers are 1 and 4

the answer to fill in the blank in this question would be the word resource, it is defined as the money, material or people (since human resource is a very valuable good) that a company or a person has at disposition (meaning they can use the resource as they see fit), to be able to complete a task or achieve a goal.