How can a planetary nebula be identified? Select the two correct answers.(1 point)

Question

Responses

central star remnant
central star remnant

spherical shape
spherical shape

diffuse edges
diffuse edges

dark area

Answer 1

The two correct answers for identifying a planetary nebula are:

1. central star remnant
2. spherical shape

Planetary nebulae typically have a central star remnant (often a white dwarf) at their center and exhibit a generally spherical shape as the gas expands outward from the star.