Which of the following was NOT a new weapon that was widely used during WWI?

a. airplanes

b. submarines

c. tanks

d. rifles

probably A. airplanes

Explanation: because airplanes don't really seem necessary during war.

plz tell me if i'm correct

3.a

4.d

5.b

6.b

7.c

8.a

9.d

10.a

nuclear fission produces the atomic bomb, a weapon of mass destruction that uses power released by the splitting of atomic nuclei the fighting in iwo jima and okinawa affected the allies' pacific strategy because truman decided to drop the atomic bomb on mainland japan.