Answer:
according to the dictionary, Ethnicity is the fact or state of belonging to a social group that has a common national or cultural tradition.
Explanation:
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Alexander spread Greek technology and ideas through his empire where people talked and visited from all areas to see what had been done.
In the 31 countries at the bottom of the list, 28 of which are in sub-Saharan Africa, a person can hope to live on average only 46 years, or 32 years less than the average life expectancy in countries of advanced human development, with 20 years slashed off life expectancy due to HIV/AIDS.