Answer:
Math, or Infrastructure
Explanation:
Hard to point out one but these are some of the best
For the first question I would say A, and the second question is the civil war
I think the 4th but I’m not 100% sure
Automotive was a huge development in 1950s and was important because it was a area we were slacking on.
Answer:
A prolonged war and greatly increased the number of casualties in the war
Explanation:
In World War I we saw the introduction of chemical weapons, machine guns, artillery, and tanks. All of this resulted in trench warfare and the lack of tactics to fight the new weapons meant that the war would be longer and a lot deadlier than it would have been without those weapons. It dragged for years from one stalemate to another and claimed a lot of lives.
