Why did southerners object to the tariff congress passed in the last month of john Quincy Adams presidency?

Southerners objected to the tariff passed during the last month of John Quincy Adams' presidency because they believed it favored northern industrial interests at the expense of southern economies, which relied heavily on agriculture and imported goods. The tariff increased the cost of manufactured items for Southern consumers and threatened their export markets by prompting retaliatory tariffs from foreign nations. This discontent contributed to growing regional tensions that would eventually lead to the Nullification Crisis and the Civil War.