Which sentence contains a spelling error?
the police officer found himself in a quandary when it came to setting up roadblocks.
he wanted to set up several roadblocks in the neighborhood; however, they're were limited personnel available.
normally, two uniformed officers staff every police vehicle as a safety precaution.
the officer arranged for three police cars to be at each stopping point.

How would the enlightenment movement have suffered if the scientific revolution had not occurred

The 15th amendment to the u.s. constitution, ratified in 1870, deals with what issue? a. prohibition of alcohol b. voting c. declaring war d. free speech

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?