The two technological advances that led to a significant increase in the enslaved population in Georgia from 1830 to 1860 are:
A. Cotton Gin
C. Steamboat
The cotton gin made cotton production much more efficient, leading to an increased demand for labor, which in turn led to a rise in the enslaved population. The steamboat facilitated the transportation of goods, including cotton, and made it easier to move enslaved people and agricultural products to market.