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symbo symbo
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8 years ago
What condition is necessary for the universe to be closed?
A)   The universe must have no mass in it.
B)   The density of the universe must be large.
C)   The density of the universe must be small.
D)   The cosmological constant must be large.
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Discovering the Universe

Discovering the Universe


Edition: 7th
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papachulopapachulo
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8 years ago
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