Why is a white dwarf star smaller than a main-sequence star that has the same white-hot color?
A. It is less luminous than the main-sequence star.
B. It is more luminous than the main-sequence star.
C. It is cooler than the main-sequence star.
D. It is hotter than the main-sequence star.
Answer:A
Why is a white dwarf star smaller than a main-sequence star that has the same white-hot color?
A. It is less luminous than the main-sequence star. B. It is more luminous than the main-sequence star. C. It is cooler than the main-sequence star. D. It is hotter than the main-sequence star.