If a 25M⨀ main-sequence star loses mass at a rate of 10−6 M⨀/yr,then how much mass will it lose in its lifetime of 3 million years?
A) 3M⨀
B) 5M⨀
C) 8M⨀
D) 10M⨀
E) 12M⨀
Correct Answer:
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