Select all that apply. What aided transportation for the Sumerians?
wheels
horses
chariots
roads

Once the plague became airborne, how could it then be spread?

List five north american and european countries in the non-communist bloc

Which of the following is a likely reason that someone today might decide to move from a city in the midwest to the south? a. the decline of manufacturing in the midwest b. the many high tech jobs available in the south c. urban overcrowding in the midwest d. higher housing costs in the south