Final answer:
The 10th Amendment establishes the principle of federalism and allocates powers between the federal government and states.
Step-by-step explanation:
The 10th Amendment of the U.S. Constitution establishes the principle of federalism by allocating powers between the federal government and the states. It states that powers not delegated to the federal government are reserved for the states or the people. This amendment helps maintain a balance of power and protects states' rights.
Learn more about The 10th Amendment and federalism