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Home Q & A Board Science-Related Homework Help Physics Astronomy
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hermiz hermiz
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7 years ago
All stars on the main sequence
A) are in the process of forming
B) are mature stars that are fusing hydrogen into helium in their cores
C) are dead stars
D) have exhausted their nuclear fuel and are in the process of dying
Textbook 
Life in the Universe

Life in the Universe


Edition: 4th
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Life in the Universe, 4/E (Bennett, Shostak)
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19Clyde19Clyde
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7 years ago
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hermiz Author
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7 years ago
You make an excellent tutor!
vernonb
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Yesterday
Thanks
zsc999
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2 hours ago
Thank you, thank you, thank you!
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