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Home Q & A Board Science-Related Homework Help Physics
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staedtler staedtler
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7 years ago
All stars on the main sequence
A)   generate energy by hydrogen fusion in their centers.
B)   have approximately the same age, to within a few million years.
C)   are changing slowly in size, by gravitational contraction.
D)   are at a late stage of evolution, after the red-giant stage.
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
Authors:
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discovererdiscoverer
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staedtler Author
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6 years ago
I really appreciate your help!
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