Slavery for sure. I believe the second one is economic differences between the North and the South.
Answer: surveyed and divided.
Explanation:
When you arrive in Iowa, it is likely to be very hot. <span>If you are unaccustomed to really hot, humid weather, be sure to drink plenty of water during exercise or outdoor activities. The combination of heat and humidity can make an 85-degree day seem well over 100 degrees.</span>
The correct answer here is the option D.
Tet offensive was a major offensive undertook by the Viet Cong along with the North Vietnamese People's Army of Vietnam and it showed the shocked South Vietnam and its American allies that the war was actually far from over. This also led to the loss of the support for the war in the States.
