Answer:
Economic ruin: The Civil War left the Southern economy in shambles, as the agricultural and industrial infrastructure was destroyed or severely damaged. The loss of the free labor force (slaves) also had a significant impact on the economy.
Loss of lives: The Civil War resulted in the loss of hundreds of thousands of lives, both military and civilian. The South suffered a greater proportion of the losses, with over 25% of its white male population of military age killed or permanently disabled.
Physical destruction: The South suffered significant physical destruction, with homes, farms, and infrastructure destroyed during the war. Sherman's march to the sea, for example, caused widespread destruction across Georgia and the Carolinas.