Please help me please will give brainliest to

please write the words used in this box

In 1073, the fight over who gets to choose bishops was between pope gregory vii and king henry the iv. t or f

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?

Brainliestttme : )) -why do people commit acts of terrorism?