Multiple Choice
The early universe had a large flux of neutrinos and antineutrinos. What happened to them?
A) They annihilated to produce protons and antiprotons.
B) They are still present as a cosmic background.
C) They were absorbed by matter, giving it some of the additional energy required for inflationary expansion.
D) They were absorbed by neutrons to form protons and electrons.
Correct Answer:
Verified
Correct Answer:
Verified
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