The North produced most of the manufactured products for the US and European markets. Farmers in the Northern states engaged in the production of cattle and dairy.
Explanation:
During the antebellum era in the United States, the American economy was strongly sectorized between north and south. Thus, the north focused mainly on manufacturing production, exporting industrial goods to Europe and supplying the domestic market for them, while the south focused on the production of grains, making use of its fertile lands and its best climatic conditions for it. In this context, the northern agricultural sector could not compete against the south, focusing on specific productions such as cattle or dairy, productions that remain in force today.
