Answer:
The term BC/BCE refers to Before Christ (BC) or used to identify dates that occurred before the year 0.
Explanation:
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There appears to have been no mass extinction associated with the carboniferous period. The period exist about 299 Million ago in the late paleozoic era. The only thing that defined this period is an existence of rich deposit of coal , and there was no mass extinction happen in this period
The alleged duty of the white peoples to bring their civilization to other peoples regarded as backward. (Hope this is right)