The concept of concurrent powers responds to the fact that many actions are necessary to serve the people at both the federal and state levels. Most notably, the power to impose and collect taxes is needed in order to raise money needed to provide police and fire departments, and to maintain highways, parks, and other public facilities.
On September 1st, 1939 Germany invaded Poland.
A) because the definition of popular sovereignty is a doctrine in which the government is created by and subject to the will of the people.
