They have the power to:
tax
regulate trade and currencies
coin money
est. post offices
Declare war
govern territories
maintain an army and a navy
grant patents and copyrights
est. immigration and naturalization laws
fix weights and measurements
In a federal system, the state and national governments share power. Some authority is exclusive to the national government and some is reserved to the states and the people, but other powers (such...
National Parks are made by the Nation's Government so it is the responsibility of the Federal government. States are responsible for creating State Parks.