Approximately how long ago did our current era begin?

The diagram below describes a series of events during the 1700s

Select the correct answer.when alexander the great ruled his empire, he spread greek culture and increased his empire's wealth. along the way, he founded many cities, most of which he named after himself. review the following map. how did alexandria's location affect trade? a. it forced people to rely on shipping to trade with other nations. b. it brought together people from the west and east for trade. c. it led to conflicts between regions of the empire. d. it forced people to pay tribute to alexander as their leader.

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.