Answer:
1. The supremacy clause makes the Constitution and all laws on treaties approved by Congress in exercising its enumerated powers the supreme law of the land. It is important because it says that judges in state court must follow the Constitution or federal laws and treaties, if there is a conflict with state laws.
2. Structure and its language, the Constitution expressed six basic principles of governing. These principles are popular sovereignty, limited government, separation of powers, checks and balances, judicial review, and federalism.
3. Delegated (or enumerated) powers are those powers specifically granted to the federal government by the United States Constitution. Concurrent powers are powers where both the federal and state government will have involvement.