Question

Which factor explains the high casualty rates of suffered by both sides in World War I?
A. aerial attacks on civilian populations
B. the use of poison gas and machine guns
C. the use of unrestricted submarine warfare
D. blimps used to direct artillery fire

Answer 1

The use of poison gas and machine guns they had better defense weapons than offensive strategies which is why it was a stalemate

Answer 2

The correct answer is B. the use of poison gas and machine guns.

WWI saw the development of many war technologies, with poison gas and machine guns as the most lethal among them. Poison gas, like mustard gas, chlorine, phosgene, and tear gas were widely used in the battlefield and caused over a million victims. Machine guns as well were widely used in every front and it caused the vast majority of victims in this war.