Answer:
Slavery was increasing because people were smuggling slaves against the law.
Step-by-step explanation:
The Act Prohibiting Importation of Slaves of 1807 is a United States federal law that stated as illegal the importation of new slaves to the country, this was enacted on March 2, 1807, then people started to trade slaves illegally as it is shown in the map where they arrived through the Atlantic Ocean, docking at Amelia Island in Florida, Charleston, South Carolina, Savannah, Georgia, Mobile Alabama, New Orleans, Louisiana, and Galveston, Texas.