Multiple Choice
A protostar's evolutionary "track" in the H-R diagram traces out:
A) only how the protostar's radius changes with time
B) how the protostar's luminosity, temperature, and radius change with time
C) only how the protostar's luminosity changes with time
D) only how the protostar's spectral type changes with time
E) the protostar's location in the molecular cloud
Correct Answer:
Verified
Correct Answer:
Verified
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