The diagram below describes the usual processes of star formation and destruction. Use the diagram and your knowledge of science to answer any questions that follow.

Question

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Multiple Choice Question
A planetary nebula is the phase of a
A.

neutron star late in its life.
B.

planet before it becomes a star.
C.

main sequence star late in its life.

Answer 1

A planetary nebula is the phase of a:

C. main sequence star late in its life.

Planetary nebulae typically form from the outer layers of a medium-sized star (like our Sun) being expelled when the star evolves away from the main sequence stage and becomes a red giant. This process occurs during the later stages of the star's life cycle, after it has exhausted the hydrogen in its core.