A Protostar's Evolutionary "Track" in the H-R Diagram Traces

question 12

Multiple Choice

A protostar's evolutionary "track" in the H-R diagram traces

• 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.

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