Answer:
States decide to leave the union
Explanation:
Upon the election of Abraham Lincoln, southern states started leaving the union before Lincoln’s inauguration. It took the Civil War to settle the question of succession.
Answer:
Social problems are usually present constantly, making it difficult to mark change.
Explanation:
Simply put, a social problem is any condition which affects a large number of people and is usually negative.
Therefore, the BEST Explanation as to why it can be harder to have an issue that impacts those in the lower realms of society defined as a social problem is that social problems are usually present constantly, making it difficult to mark change.
This would be maintenance rehearsal, the practice of repeating something either verbally or in your head to hold in short term memory.