The American civil war was caused not by slavery but by economic factors
Although you unhelpfully didn't supply the following choices, the answer is
<u>the opportunity for former slaves to leave the U.S.</u>
Answer:
Passed by Congress on January 31, 1865, and ratified on December 6, 1865, the 13th amendment abolished slavery in the United States
Explanation:
The 13th amendment abolished slavery and allowed all people of color to be free and treated normal
It's basically when there were bans against alcohol consumption and production. so wet=alcohol and dry=no alcohol