A star on the main sequence has 7 solar masses. The star will evolve into a ____________ and its core will be supported by ______________.
a. white dwarf, electron degeneracy pressure
b. neutron star, neutron degeneracy pressure
c. black hole, no pressure (i.e., it will not be supported)
d. white dwarf, neutron star, or black hole; electron degeneracy, neutron degeneracy, and no pressure, respectively.
Ans: a. white dwarf, electron degeneracy pressure
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