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Cosmic Density and Spatial Geometry
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Astronomy
AST.251 Cosmic Density and Spatial Geometry
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If a simplified model is described as spatially flat, what must be true about its total density compared with the critical density?
A
The total density must be greater than the critical density.
B
The total density must be less than the critical density.
C
The total density must be unrelated to critical density.
D
The total density must equal the critical density.
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