Question

which statements describe the death of stars? check all that apply. a stars final stages of life depend on its mass. stars die when they run out of fuel. when a star starts to die, its core expands. the outer portion of the star contracts. all stars become black holes when they die.

Explanation:

• A star's final stages of life depend on its mass. For example, low - mass stars (like the Sun) have different end - of - life scenarios compared to high - mass stars.
• Stars die when they run out of fuel. Nuclear fusion in the core is what powers a star, and when there is no more fuel for fusion (like hydrogen, helium, etc. depending on the star's stage), the star can no longer support itself against gravity.
• When a star starts to die, its core contracts (not expands) due to gravity, and the outer layers may expand (in the case of a red giant for a low - mass star). So the statement "When a star starts to die, its core expands" is incorrect.
• The outer portion of the star may expand (e.g., in a red giant phase for a low - mass star) rather than contract. So the statement "The outer portion of the star contracts" is incorrect.
• Only very high - mass stars (greater than about 20 times the mass of the Sun) can become black holes. Most stars (like the Sun) will end up as white dwarfs. So the statement "All stars become black holes when they die" is incorrect.

Answer:

A. A star’s final stages of life depend on its mass.
B. Stars die when they run out of fuel.