The photograph is not here, but I did research and found the photograph in question. The architectural feature that the photograph of the Hagia Sophia shows is a dome.
The correct answer is Germany declared unrestricted submarine warfare against all ships.
What this means is that Germany claimed control of the seas and oceans and if anyone opposed it they would attack it with their submarines. The US joined the war 2 months later.
Railroads provided a beneficial factor toward the rapid growth in cities and especially significantly improved its industrialization. This is my first time answering a question.
In a sense yes because it was very affective and powerful, but overall no, it was not very morally acceptable
