D.,
A, B, and C have the solution of the system of Equations (2,1) But D has a solution of (1,2).
<span>Plessy v. Ferguson.....</span>
Answer:
Agriculture, revolts, and trade.
Explanation:
Aksum's agriculture began to collapse because of the cutting down of trees and irregular rainfall which eroded the soil. Revolts were also taking place, especially from the North.
The American civil War was a war fought from 1861 to 1865. It was one of the bloodiest wars.