Answer:
The Nazis began experimenting with poison gas for the purpose of mass murder in late 1939 with the killing of patients with mental and physical disabilities in the Euthanasia Program.
Answer:
Plagues, sickness and some cities didn't have the money to regulate trade.
Explanation:
Most critics of the American system of federalism claim that the system is an <span>inefficient one because of the lack of response to crises that involve multiple levels of government</span>
