what happens first when a star begins to run out of fuel? the stars core shrinks. the star becomes a black…
what happens first when a star begins to run out of fuel? the stars core shrinks. the star becomes a black hole. the star becomes a white dwarf. the stars outer layer drifts away.
Answer
Brief Explanations:
When a star starts running out of fuel, the core, which was previously supported by the energy from nuclear fusion, no longer has that outward - pushing force. Gravity then causes the core to shrink. Becoming a black hole or white dwarf are later stages in the life - cycle of a star (for black holes, it requires a very massive star; for white dwarfs, it's for lower - mass stars after more evolution). The outer layer drifting away (like in a planetary nebula) also occurs after the core has started to change.
Answer:
The star's core shrinks.