What major technological advancement is used to destroy Guernica and change warfare forever?

All state and federal officials are required to take an oath to support the constitution. select the best answer from the choices provided t f

Which of the following describes an effect of world war ll on the united states economy a. automobile companies produced a record number of cars b. many factories had to expand to produce military equipment c. the airplane industry suffered as the allies began using airplanes in combat d.cities with shipyards declined because so many ships had been sent overseas.

Who created the continental drift theory?