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Earthy Earthy
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8 years ago
Cepheid variables are important stars to cosmologists because their ________ can be determined from their rate of pulsation.
A) age
B) amount of degenerate matter
C) rate of expansion
D) absolute magnitude
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Foundations of Earth Science

Foundations of Earth Science


Edition: 7th
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Richy271Richy271
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8 years ago
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Earthy Author
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8 years ago
I'll mark my thread solved, I appreciate the help!
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8 years ago
You're very welcome, but don't forget to mark it solved!
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