A ZAMS star evolves __________ and to the __________ on the H-R diagram because ________________.
A)downward, left, the core expands which causes the outer layers to expand
B)upward, right, the core contracts which causes the outer layers to expand
C)upward, left, the core expands which causes the outer layers to contract
D)downward, right, the core contracts which causes the outer layers to contract

Question

Quizplus · Accepted Answer

A Zero Age Main Sequence (ZAMS) star evolves upward and to the right on the H-R diagram as its core contracts, leading to the expansion of its outer layers. This process increases the star's luminosity and decreases its surface temperature, moving it upward and rightward on the diagram.

A ZAMS Star Evolves __________ and to the __________ on the H-R

A ZAMS Star Evolves and to the on the H-R