*select all that apply*
albert einstein's work contributed to
-the development of nuclear reactors
-the end of world war ii
-the big bang theory
-the movement of the planets
-the understanding of personhood

The articles of confederation allowed congress to: make and borrow money. declare war. create a postal service. all of these choices are correct.

The quote below is an excerpt from the charter of the united nations: "the purposes of the united nations are: to maintain international peace and security, and to that end: to take effective collective measures for the prevention and removal of threats to the peace, and for the suppression of acts of aggression or other breaches of the peace, and to bring about by peaceful means, and in conformity with the principles of justice and international law, adjustment or settlement of international disputes or situations which might lead to a breach of the peace . " source:this section implies that the united nations is prepared to do what to keep world peace?

People who move from place to place for survival is called