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Question
Why didn't elements heavier than helium form in the first minutes of creation?A) The first generation of stars used them up too quickly to observe them.
B) There was not enough matter in the universe at that time.
C) When He-4 was formed, the expansion cooled the cosmos below 100 million K.
D) The electrons slowed down enough to be captured into orbits by protons.
E) Only Type I supernovae can produce iron and heavier elements.
Answer
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