This diagram represents the life track of a 1-solar-mass star.Refer to the life stages labeled with Roman numerals.

-During which stage does the star have an inert (non-burning)carbon core surrounded by shells of helium and hydrogen burning?
A)II
B)III
C)VI
D)VII
E)VIII

Question

This diagram represents the life track of a 1-solar-mass star.Refer to the life stages labeled with Roman numerals.
 
-During which stage does the star have an inert (non-burning)carbon core surrounded by shells of helium and hydrogen burning?
A)II 
B)III 
C)VI 
D)VII 
E)VIII

Quizplus · Accepted Answer

In stage VIII, a star has an inert carbon core with surrounding shells of helium and hydrogen burning. This stage occurs after the helium burning phase in the core has ended, leading to the formation of a carbon core.

This Diagram Represents the Life Track of a 1-Solar-Mass Star