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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
How much mass are planetary nebulae estimated to return to the interstellar medium each year over the Galaxy as a whole?
A)   Aabout 50,000 M.   C)   About 5 M.
B)   About 5 × 108 M.   D)   About 500 M.
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Discovering the Universe

Discovering the Universe


Edition: 7th
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hyponoticahyponotica
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staedtler Author
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7 years ago
On behalf of my study group and I, thank you
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