Final answer:
Terms such as doughboy, gas mask, dog fighting, and Big Bertha originated from World War I, referring to American infantrymen, protection against chemical warfare, aerial combat, and heavy German artillery, respectively.
Step-by-step explanation:
The terms doughboy, gas mask, dog fighting, and Big Bertha all originated from World War I. 'Doughboy' was a term used to describe American infantrymen, particularly those serving in the American Expeditionary Forces. The use of gas masks became widespread during World War I as a crucial means of protection against the chemical warfare that became a horrifying hallmark of the conflict. Dog fighting referred to aerial battles between fighter aircraft, which became an important aspect of modern warfare during this time. 'Big Bertha' was the name given to a series of heavy German artillery guns designed for long-range bombardment.
World War I saw significant technological advancements as well as societal impacts, with women contributing greatly to the war effort and often facing challenging conditions near the frontlines. The enlistment of large numbers of soldiers, many via the draft, marked a shift in the scale of American military involvement in global conflicts.