The cities, for example Durban, would be a coastal plain.There's highlands (mountains), high plateus and rivers and lakes.
The correct answer to this open question is the following.
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The two events which ended the time of primitive society started the time of animal husbandry society were the end of humans being nomads and the beginning of the Neolithic Revolution.
When humans established between the Rivers Tigris and Euphrates, in the Middle East, they formed the first and oldest civilization on planet Earth: the Sumerians.
There, they developed new and advanced agriculture techniques and could prosper learning the times of the flooding of the rivers. That flooding left a very fertile soil to grow crops. That is why they could establish powerful city-states such as Lagash, Ur, Kish, Nippur, Uruk, or Eridu.
The Neolithic Revolution is also known as the Agriculture Revolution. That is when Sumerians started to plant seeds and domesticate animals.
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We need them because each currency up or down movement against every other currency may be different at different times. This allows each country to adjust its standard of living according to how its currency is fairing against the currencies of its major trading partners.
