Question

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question 12
all stars, regardless of size, eventually ____.
3 pts
turn into black dwarfs
explode
run out of fuel and collapse
become black holes

Explanation:

Stars generate energy through nuclear fusion. When they run out of fuel (like hydrogen for fusion), the outward pressure from fusion stops. Gravity then causes the star to collapse. Small - to - medium - sized stars (like our Sun) will eventually become white dwarfs (and then black dwarfs over a very long time, but black dwarfs are still theoretical as the universe isn't old enough for them to form in large numbers). Massive stars may explode (supernova) and then form neutron stars or black holes. But the common, inevitable first - step for all stars (regardless of size) when fuel runs out is collapse due to the lack of outward - pushing fusion pressure.

Answer:

run out of fuel and collapse