The effects that WWI had on Germany was that they lost allies and suffered huge territorial losses giving away its land and population to Poland, Russia, France, Belgium, and Denmark, and ultimately had to sign the Treaty of Versailles. After the U.S involvement in the first World War it lead directly to the Great Depression and WWII, The Treaty of Versailles led to a system where the U.S was cashing in its wartime loans to the U.K which in turn was using the wartime reparations it received from Germany to pay off the U.S.
If the companies don't have to spend money on making the working conditions of their shop safer, that saves them money. It also saves them time (thus, saving money).
Answer: Federalism is the system of government in which power is divided between a central government and regional governments; in the United States, both the national government and the state governments possess a large measure of sovereignty.