Based on the diagram, which resource was both an import and an export of Mali? Why do you think it was both an import and export?

From Mali:

Gold
Copper
Kola nuts
enslaved people
Education

To Mali:
Salt
Ivory
horses
cloth
pottery
jewels
metal tools
education
GIVE ME A VERY SHORT ANSWER, AND MAKE IT LOOK LIKE A 6TH GRADER WROTE IT!!!!

Salt was both an import and export of Mali because they traded salt with other countries for things they needed like horses and cloth.