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← ScienceWhich consequence results when stellar hydrogen core fusion ceases?
A)Gravitational collapse increases significantly✓
B)Radiative zone convection stabilises.
C)Helium burning rate precisely decelerates.
D)Neutrino production completely halts.
💡 Explanation
Gravitational collapse increases because the outward radiation pressure generated by Hydrogen fusion, the primary mechanism of energy generation within the stellar core, diminishes rapidly. Therefore, gravity overwhelms pressure, rather than leading to stabilisation or controlled helium burning under these conditions.
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