Answer and Explanation:
The combined action of several abolitionists put pressure on the northern leadership to abolish slavery in the country. Many of them did this for humanistic and religious reasons that reinforced the idea that amaerica should be a country of full freedom and that it was a Christian duty that all men be treated as equals, others became abolitionists for economic reasons because they believed that freed slaves would promote greater work in the industries.
However, the economic issue also hindered abolition. This is because many southerners, who were in favor of slavery, claimed that agricultural production depended on slave labor. Without agricultural production, the economy would also suffer.