How did the Colorado River form the Grand Canyon?

In this theory for forming a government, violence has made people follow a leader. evolution theory force theory divine right theory social contract theory

This painting of the yosemite valley in california, finished in 1865, reflects the romantic movement. how does this painting depict aspects of romanticism? check all that apply. it celebrates tradition and reason. it shows an ancient roman influence. it inspires an emotional reaction. it includes dark, dreary colors. it inspires the imagination. it shows a love of nature. mark this and retum submit

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?