Quiz Answers – World War II Question #28: In terms of death toll, World War Two is the ___ deadliest conflict in human history. (Fill in the Blank) Correct Answer: 1st Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37