Answer:
A.
Explanation:
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Answer:
An ethnic category or group is a group of people identify with each other. Typically based on language, history, ancestry, culture
Explanation:
What are the examples?
Superposition is the geologic principle which explains why the bottom stratum in a section of rock is the oldest. The word literally means placing one thing on top of another where the lower strata are the older.
A triangle’s angles are equivalent to 180 degrees so the third angle would have to equal 20 degrees