Questions: Which clause of the First Amendment prevents Congress from supporting one religion as the nation's official religion?

The answer is Establishment.

The Free Exercise Clause of the First Amendment protects individuals' rights to practice their religion freely without government interference. It does not address the issue of the government supporting a particular religion.

Impartiality is not a specific clause in the First Amendment. It generally refers to fairness and neutrality, but it is not the term used in the context of the First Amendment.

The Establishment Clause of the First Amendment prohibits Congress from establishing a national religion or favoring one religion over others. It ensures the separation of church and state.

This appears to be a typographical error and does not correspond to any clause in the First Amendment. The Full Faith and Credit Clause is part of Article IV of the Constitution, dealing with states' obligations to respect the public acts, records, and judicial proceedings of other states.

The Elastic Clause, also known as the Necessary and Proper Clause, is found in Article I, Section 8 of the Constitution. It grants Congress the power to pass all laws necessary and proper for carrying out its duties, but it is not related to the First Amendment.