Which of the following was not a new type of weapon used in wwi? select one: tank nuclear weapon machine gun poison gas

Nuclear Weapons. Nuclear weapons were created and mass produced in WW2 and used on Hiroshima and Nagasaki, but they were never used nor created before that.

The best and most correct answer among the choices provided by the question is the second choice or letter B. Tenement apartments at the beginning of the twentieth century were small and dangerous. I hope my answers has come to your help. God bless and have a nice day ahead!