A Scientist wants to rank stars,in order,by the length of their life.What is the main factor she should examin
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A Scientist wants to rank stars,in order,by the length of their life.What is the main factor she should examin

[From: ] [author: ] [Date: 11-05-18] [Hit: ]
More massive stars have longer lifespans.C. How close the star is to other stars.D. How close the star is to a black hole-A. The mass of the star.......
A. The mass of the star. More massive stars have shorter lifespans.
B. The mass of the star. More massive stars have longer lifespans.
C. How close the star is to other stars.
D. How close the star is to a black hole

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A. The mass of the star. More massive stars have shorter lifespans

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It's A.

The more massive a star, the faster it consumes it's fuel. Yellow and Red dwarves live *billions* of Years, massive blue stars only 10s to 100s of millions.

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A. The mass of the star. More massive stars have shorter lifespans.

Our star is small so it will burn for Billions of more years. Much more massive stars use up their fuel faster.

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The correct answer is A. Because larger stars have more mass, they use up their hydrogen faster, resulting in shorter life spans.

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a
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