Question

PLZZZ HELP :

Each of the following weapons was used for the first time in WWI except:
a. tanks
b. airplanes
c. gun powder
d. submarines

Answer 1

Answer: a. Tanks

Step-by-step explanation:

Tanks were a new weapon and because they were so new and unreliable they werent used as much as other weapons, including airplanes, submarines, gunpowder etc.