What significant geobiological event took place 542 ma ago?

Amain purpose of the president‘s state of the union address is to - identify major policy issues - explain supreme court decisions - challenge congressional actions - speak out against political opponents

Why did un coalition troops battle iraqi forces in 1991? iraq had invaded saudi arabia, along with its other border nations.iraq had invaded kuwait, which was a major source of the world's oil.the united nations wanted to remove saddam hussein from power.the united nations wanted to prevent the trade of illegal drugs.

All state and federal officials are required to take an oath to support the constitution. select the best answer from the choices provided t f