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

Question

Responses

diffuse edges
diffuse edges

spherical shape
spherical shape

dark area
dark area

central star remnant

Answer 1

The two correct answers for identifying a planetary nebula are:

1. spherical shape
2. central star remnant

Planetary nebulae typically have a spherical shape and often contain a central star remnant, which is usually a white dwarf.