Arrange the following stars in order of their evolution: Youngest to oldest: .B:
ID: 296884 • Letter: A
Question
Arrange the following stars in order of their evolution:
Youngest to oldest:
.B: A star of uniform composition from center to surface; it contains hydrogen but has no nuclear reactions going on in the core.
C: A star that is fusing hydrogen to form helium in its core.
D: A star that is fusing helium to carbon in the core and hydrogen to helium in a shell around the core.
E: A star that has no nuclear reactions going on in the core but is fusing hydrogen to form helium in a shell around the core.
A: A star with no nuclear reactions going on in the core, which is made primarily of carbon and oxygen
Explanation / Answer
?STAR ?B. uniform composition and no reaction means that it is a PROTOSTAR. STAR C .hydrogen fused into helium in the core means it is a MAIN SEQUENCE STAR. STAR E.hydrogen fusion in a shell around a dormant core means it is an ORANGE GAINT. STAR D.helium fusion in the core and hydrogen fusion in the shell means it is a RED GAINT. STAR A.a core entirely of carbon and oxygen means that it is at THE END OF THE RED GAINT STAGE .