The quality of the arguments becomes a more important determinant of persuasion.
If your question meant "What was the common cultural trait of the urbanized trading ports of the east African coast?" then it would be Bantu-based and Arabic-influences Swahili language.
The answer to this question is <span>Socio-cultural knowledge
</span><span>Socio-cultural knowledge refers to the awareness on the value and morality that held within a certain social group.
</span>This type of knowledge will be really helpful if you wanted to understand those people's behavior and predict their actions when you decided to do something.
<span>The bill is reviewed by a committee
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