Escaping a war in one’s country of origin as a reason for immigrating to another country is an example of-
A pull factor
Push factor
Migration pull
Migration push

Why were inventors essential or necessary for an industrial revolution to happen in america

In 1819, what did the united states obtain from spain for $5 million?

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?