The point in stellar evolution when a star has used up all its fuel and is radiating away its remaining thermal energy as light is the ________ stage.
A)black hole
B)main-sequence star
C)red giant
D)white dwarf

Question

Quizplus · Accepted Answer

The stage described in the question is referring to the end of a star's life cycle, where it has exhausted all its fuel and is no longer undergoing nuclear fusion. This stage is typically followed by the star shedding its outer layers and contracting down to become a white dwarf, which then slowly cools and fades away over billions of years. Therefore, the best choice is D, white dwarf.

The Point in Stellar Evolution When a Star Has Used