The abandonment of past customs.
Pretty sure it is C because it it divisible by 3. If you divide 15 you get 5 and if you divide 6 you get 2.
Answer:
B. The use of indigenous populations as part of a system of forced labor
Explanation:
Answer:
They created irrigation systems and used canals to control flooding. They also used the silt brought by the floods to help with their farming.
According to quizlet.com "North: factories, cities, small farms, immigration communities, no need for slavery, a house was the basis for northern power, more railroads<span>South: slave labor, plantations, cotton, few immigrants, senate basis for political power, few railroads"
Hope this helps.</span>