Under the Constitution, States Are Prohibited from Doing All of the Following

question 21

Multiple Choice

Under the Constitution, states are prohibited from doing all of the following, except:

• A) lay duties on exports, without the consent of Congress
• B) enter into treaties
• C) pass ex-post facto laws
• D) conduct background checks before allowing citizens to purchase handguns

---

Definitions:

Excited State

A condition of an atom, molecule, or nucleus in which it possesses more energy than its ground state.

Electron

A subatomic particle with a negative charge, found in all atoms and acting as the primary carrier of electricity in solids.

Photon

A quantum of electromagnetic radiation that embodies the concept of light as both a particle and a wave.

Electron

A subatomic particle with a negative charge found in all atoms, contributing to electricity.