Answer:
Gunsmiths made it easier for soldiers to get the needed guns and supplies for the soldiers to fight with. Communication improvements: The telephone made it so people could ask for a certain person and talk to them almost instantly. Transportation improvements: Cars and boats made it so people could get supplies faster for making things. Mass production: Factories made it so they could make large quantities of things faster.
Explanation:
- Department of Energy (DOE)
- International Revenue Service (IRS) —> a bureau of the Department of the Treasury
