Stars join the main-sequence group when they begin hydrogen fusion in their cores.They leave the main-sequence group and become giant stars when their core hydrogen is depleted.

Question

Quizplus · Accepted Answer

This statement is true. Stars join the main-sequence group when they begin to fuse hydrogen in their cores, and they leave the main sequence and become giant stars when their core hydrogen is depleted. This process occurs as the star progresses through its life cycle.

Stars Join the Main-Sequence Group When They Begin Hydrogen Fusion