Answer:
1. a statement in the U.S. Constitution (Article I, Section 8) granting Congress the power to pass all laws necessary and proper for carrying out the enumerated list of powers.
2. The Supreme Court held that yes, Congress was granted the proper authority by the Elastic Clause to enact the Act. ... The U.S. argued that the Elastic Clause did in fact provide Congress with the power it would need in order to enact this important protective legislation.
3. The Trial of all Crimes, except in Cases of Impeachment, shall be by Jury; and such Trial shall be held in the State where the said Crimes shall have been committed; but when not committed within any State, the Trial shall be at such Place or Places as the Congress may by Law have directed.
4. I can't find this one.
Hope this was helpful^^