What are the two key observational facts that led to widespread acceptance of the Big Bang model?
A) the predominance of matter over antimatter and the near- critical density of the universe
B) the cosmic background radiation and the near- critical density of the universe
C) the cosmic background radiation and the expansion of the universe
D) the cosmic background radiation and the helium content of the universe
E) the predominance of matter over antimatter and the large scale structure of the universe
Correct Answer:
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Q1: Q2: What kinds of atomic nuclei formed during Q3: How long after the Big Bang was Q4: Why do we think tiny quantum ripples Q6: Laboratory experiments conducted with particle accelerators confirm Q7: The electromagnetic force is stronger than gravity. Q8: How does the theory of inflation explain Q9: Approximately how long did the nucleosynthesis era Q10: We have direct experimental evidence (from large Q11: Why is the night sky dark?
A)The universe
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