Multiple Choice
Reionization of the neutral gas in the universe occurred due to the
A) decay of dark matter particles.
B) emission of neutrinos by the first stars that formed.
C) heating from the motion of high-velocity black holes.
D) radiation from the first stars, supernovae, and black holes that formed.
E) positron and electron annihilations.
Correct Answer:
Verified
Correct Answer:
Verified
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