The correct answer to this open question is the following.
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The key features of the Umm an-Nar Society that you have to consider are the following.
Location: they inhabited the territory of Abu Dhabi, off its coast. Highlight the this was an island called Umm an-Nar.
The time: they lived during the Bronze Age. Approximately form 2,500BCE to 2,000 BCE.
Influence: they influence all the territory of the Arab Emirates.
Main activity: trade. They trade sea products with other regions.
Other civilizations that had trade relationships: the Indis Valley Civilizations and Sumeria with its many city-states such as Lagash, Kish, Uruk, and Ur.
Objects found in excavations: archeologists have found many objects that belonged to this civilization such as pottery, weapons, necklaces, jewelry, and hooks for fishing.