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Home Q & A Board Science-Related Homework Help Physics
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symbo symbo
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7 years ago
How do astronomers know that globular clusters are very old?
A)   They do not contain any red giant stars.
B)   There are no main-sequence stars in globular clusters.
C)   Their stars have a high abundance of heavy elements.
D)   There are no massive main-sequence stars in globular clusters.
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
Authors:
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discovererdiscoverer
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symbo Author
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#2
6 years ago
Thanks for answering, I'll share this with my classmates too
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