What were the foreign policy challenges at the beginning of obama's first term as president?

war in bosnia
war in iraq
war in afghanistan
iran-contra affair
iran hostage crisis

How did political revolutions in the atlantic ocean basin affect or alter the institution of slavery and the lives of slaves

Those who resisted the mongol invaders were attacked and their towns burned; those who cooperated with them also were attacked and had their towns burned. were treated fairly. were taken into the tribes and treated as mongols. were sent away to find new homes.

Which of these is not a criticism of the concentric zone model? it does not accurately describe cities after the rise of suburban development. it only applies to cities that grew after the development of the automobile. it assumes that inner-city areas will always be repurposed instead of abandoned. it places too much importance on the traditional central business district.