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Question
The outward pressure in the core of a red giant balances the inward pull of gravity whenA) the electron orbits are compressed so much they are all in contact.
B) the electrons and protons have combined to form neutrons.
C) hydrogen begins fusing into helium.
D) carbon fuses into heavier elements.
E) iron forms in the inner core.
Answer
This answer is hidden. It contains 1 characters.
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