Explain the purpose of public opinion polls. Describe several ways in which a sample can be conducted. Which is the most effective? Why?

Use this excerpt from the corpus luris civilis (justinian's law code) to answer the following question: with the aid of god governing our empire, which was delivered to us by his celestial majesty, we carry on war successfully. we ador peace and maintain the constitution of the state, and have such confidence in the protection of almighty god that we do not depend upon our arms, or upon our soldiers, or upon those who conduct our wars, or upon our own genlus, but we solely place our reliance upon the providence of the holy trinity, from which are derived the elements of the entire world and their disposition throughout the globe. --public domain from this excerpt of the prologue of the corpus luris civilis, what departure from older roman traditions is clear? the laws show that the empire has developed a bureaucracy that makes normal soldering unnecessary. the law now honors christianity as a central part of the empire's existence. the law explains that the roman empire is using war to spread roman ideas. the law has replaced old social class divisions with an egalitarian church,

Background information: this is an article by will irvin, a correspondent for the new york tribune. irvin wrote this piece in april 1915, while reporting from the western front. at the time that irvin wrote this piece, the united states had declared neutrality in the war. boulogne, april 25. – the gaseous vapor which the germans used against the french divisions near ypres last thursday, contrary to the rules of the hague convention, introduces a new element into warfare. the attack of last thursday evening was preceded by the rising of a cloud of vapor, greenish gray and iridescent. that vapor settled to the ground like a swamp mist and drifted toward the french trenches on a brisk wind. its effect on the french was a violent nausea and faintness, followed by an utter collapse. it is believed that the germans, who charged in behind the vapor, met no resistance at all, the french at their front being virtually paralyzed. the effect of the noxious trench gas seems to be slow in wearing away. the men come out of their nausea in a state of utter collapse. some of the rescued have already died from the after effects. how many of the men left unconscious in the trenches when the french broke died from the fumes it is impossible to say, since those trenches were at once occupied by the germans. –will irvin, 1915 what were the effects of the poison gas, according to the reporter? a.) the french were victorious over the germans. b.) soldiers suffered from nausea and began to pass out, while some even died. c.) there were few effects, and the battle continued. d.) the gas was yellow and caused the men’s skin to blister.

How w. e.b. dubois wanted to improve the social and economic situation that existed for african americans during the early 19th century?