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How does the observed amount of visible matter in the universe compare to the amount required to ...

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How does the observed amount of visible matter in the universe compare to the amount required to ...

How does the observed amount of visible matter in the universe compare to the amount required to just close the universe?
A)   The observed amount of visible matter is about 1/3 of the amount needed.
B)   The observed amount of visible matter equals the amount needed, to within observational uncertainty.
C)   The observed amount of visible matter is about twice the amount needed.
D)   The observed amount of visible matter is about 1/200 of the amount needed.

Textbook

Discovering the Universe

Edition: 7^th

Authors: Kaufmann, Comins

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staedtler Author

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7 years ago

Exactly what I needed

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