Question
How can a planetary nebula be identified? Select the two correct answers.(1 point) Responses central star remnant central star remnant spherical shape spherical shape dark area dark area diffuse edges
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GPT-4o mini
The two correct answers for identifying a planetary nebula are:
1. **Central star remnant**
2. **Diffuse edges**
A planetary nebula typically features a central star remnant (a dying star) and its outer regions often have diffuse edges as the gas expands and becomes less dense.
1. **Central star remnant**
2. **Diffuse edges**
A planetary nebula typically features a central star remnant (a dying star) and its outer regions often have diffuse edges as the gas expands and becomes less dense.
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