During the mid-19th century, southerners and northerners both had fears around slavery. What did many southerners fear? What did many northerners fear?

where is the map at?

a. poison gas was sprayed over battlefields by airplanes to weaken enemy positions before major attacks.

chamberlains goal was to stop the uk ad germany from fighting which he went to hitler and asked if he could sign a peace treaty between germany and the uk