Minerals and metals ( copper, nickel, iron, lead, bauxite, etc.)
Explanation:
This question can have a wide range of answers but minerals and metals could possibly be the best one. The United States is one of the largest global producers of metals and minerals and experts even encourage investing in this constantly growing business. These resources are being used to financially support businesses as well as the United States economy. From pots used for cooking, screws and fasteners, or jewelry, the metal industry is one of the largest manufactures.
More slaves would be required for the new cotton lands and it would be harmful to the people who were about to be enslaved because thousands were being sold for their labor.
