Question

Which factor explains the high casualty rates of suffered by both sides in World War I?
aerial attacks on civilian populations

the use of poison gas and machine guns

the use of unrestricted submarine warfare

blimps used to direct artillery fire

Answer 1

@texaschic101

Answer 2

I do believe that it is the use of poison gas and machine guns

Answer 3

I think that you are right. B.

Answer 4

okay thank you

Answer 5

no problem