Which of the following was NOT used for the first time in WW1?
a) battleships
b) tanks
c) poison gas
d) airplanes

Airplanes

Explanation:

The first Military Aircraft in U.S history was a Wright Model A on August 2, 1909. This was BEFORE the start of ww1 in 1914. Also, the Italians used Military Aircrafts in the Italo-Turkish war in 1911.

        i'm fairly sure that the correct answers are 2 and 3.

        i used both my knowledge of world history and the process of elimination to obtain these answers. option 1 cannot be a possible selection because the mandate of heaven belongs to ancient chinese philosophical belief. option 4 sounds like it would benefit the region than detriment it. however, both 2 and 3 explain a potential reason for what could have contributed to the fall of the roman empire.

      hope this ! if i were you, i'd get a second opinion, because i haven't taken this course for a year. best of luck!

***websites that me understand the curriculum better last year are and ***

hi   i took this test in k12 2 weeks ago your answer is the name of it 14 points it failed because america was not behind him with this idea and it nevr passed the sentate

2   irelenad and jews wernt with him because he was focusing more on the war then them