Consider the star to which the arrow points. How is it currently generating energy?
A)by hydrogen shell burning around an inert helium core
B)by gravitational contraction
C)by both hydrogen and helium shell burning around an inert carbon core
D)by core hydrogen fusion
E)by core helium fusion combined with hydrogen shell burning

Question

Quizplus · Accepted Answer

The star indicated by the arrow is in a stage where it has exhausted hydrogen in its core, leading to the formation of an inert helium core. The star is now generating energy through hydrogen shell burning around this inert core, characteristic of stars in the red giant phase.

Consider the Star to Which the Arrow Points