<em>Dura-Europos</em> was an ancient city located in the vicinity of village of <em>Salhiyé</em>, Syria, along the Euphrates river, close to the Iraq border.
Christian places needed to be discreet or secret around 240 A.D.; thus earlier congregations worshiped in private houses of wealthy members; some of those houses were converted into churches, and the house in <em>Dura-Europos</em> was one of those conversions.
So the purpose of the frescoes was to celebrate Christian worship secretly, and to illustrate the old testament writings, mostly for the illiterate people who couldn't read the sacred books, as a medium of what they called "<em>hope of new spiritual birth</em>".
"<span>b. The North became integrated; the South remained segregated" would be the best option, since immediately after the Civil War the South implemented a series of Jim Crow laws that were meant to keep blacks separate from whites.</span>
Bringing water in from different areas can cause diseases and medical problems. Unfamiliar minerals and vitamins, along with diseases and bacteria, can manifest the water. People or animals whom have not adapted to the water's different diseases and bacteria can catch these diseases and get sick from the bacteria. Natives, on the other hand, may have adapted to the water's bacteria, and the body changes in order to fight off the different bacterium.
Gompers' approach to labor unions differs from that of Debs' in terms of their approach. Gompers think that labor could work with capitalism while Debs took the socialistic approach. Thank you for posting your question. I hope that this answer helped you. Let me know if you need more help.
Ending the civil war in Syria.