Answer:
It forms divisions.
Explanation:
Slavery has poisoned American life because it forms division among the residents of United States of America. Due to this division, the unity of the nation is adversely affected which is poison for the country. Unity is the main factor that helps nation to grow and achieve development in every field of life so if the slavery exists in the American society, the country will not achieve success so it is a poison for a country and its people.
