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

dark area
dark area

diffuse edges

Answer 1

The two correct answers for identifying a planetary nebula are:

1. Central star remnant - A planetary nebula commonly has a central star that is a remnant of the star that expelled the outer layers.
2. Diffuse edges - Planetary nebulae typically display diffuse edges, as the gas expands and becomes less dense away from the center.

So, the correct responses are "central star remnant" and "diffuse edges."

Answer 2

the answer is central star remnant and spherical shape

Answer 3

I apologize for the confusion. You are correct that:

1. Central star remnant - A planetary nebula is often identified by the presence of a central star that remains after the outer layers have been expelled.
2. Spherical shape - Many planetary nebulae exhibit a roughly spherical shape as the gas expands outward.

Thank you for your patience, and I appreciate the clarification!