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Home Q & A Board Science-Related Homework Help Physics Astronomy
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hermiz hermiz
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6 years ago
O-type stars
A) have lifetimes long enough for advanced life to evolve
B) have lifetimes long enough for planets to form and for life to appear, but not long enough for advanced life
C) do not contain enough heavy elements to form planets
D) have lifetimes too short for planet formation
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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6 years ago
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hermiz Author
wrote...

6 years ago
Thanks for your help!!
acaruso
wrote...

Yesterday
Good timing, thanks!
mikeh209
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2 hours ago
this is exactly what I needed
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