the universe becomes ionized again once
A. it cools down enough to form neutral hydrogen
B. black holes give off light
C. dark matter slows down and clumps together
D. the first stars are born bathing the universe in high energy
radiation
the universe becomes ionized again once A. it cools down enough to form neutral hydrogen B. black holes give off light C
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answerhappygod
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the universe becomes ionized again once A. it cools down enough to form neutral hydrogen B. black holes give off light C
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