Multiple Choice
Elements above hydrogen and helium come from _____.
A) the early stages of the Universe, before the formation of stars and galaxies
B) the collision of neutron stars and black holes
C) cooling and accretion of molecules in dense molecular clouds
D) the last phases of stellar evolution and stellar "death"
E) matter falling into supermassive black holes
Correct Answer:

Verified
Correct Answer:
Verified
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