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Based on Observations of the Cosmic Microwave Background, the Overall

Question 24

Multiple Choice

Based on observations of the cosmic microwave background, the overall composition of the universe is ________.


A) 100% ordinary (baryonic) matter
B) 15% ordinary (baryonic) matter, 85% non-ordinary (nonbaryonic) dark matter
C) 1% ordinary (baryonic) matter, 99% non-ordinary (nonbaryonic) dark matter
D) 4% ordinary (baryonic) matter, 23% non-ordinary (nonbaryonic) dark matter, 73% dark energy

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