Why do people take the time to hold such ceremonies like the one marking the 50th anniversary of the liberation of Auschwitz? Why might it be important to remember horrible crimes committed in the past? Explain.

first, the romans stayed isolated because they had to defend their own territories from neighboring cities that were harassing them, like the etruscans. second, once the romans managed to defeat their neighbors, and started to expand their territory, they started to build roads and bridges. finally, now that the romans have covered their territory with roads functioning as highways, they could mobilize their legions faster to assemble larger military units in a specific place

well considering i can't see the graph, it's probably prices

c- companies fail to take environmental protection into account. i think

fertile good for trade etc