Question

What does it mean to characterize a nebula as diffuse?(1 point) Responses It reflects only visible radiation. It reflects only visible radiation. Its edges do not have clear boundaries. Its edges do not have clear boundaries. It reflects only non-visible radiation. It reflects only non-visible radiation. Its edges have clear boundaries.

Answer 1

To characterize a nebula as diffuse means that **its edges do not have clear boundaries**. This indicates that the nebula's structure is spread out and lacks well-defined outlines, making it appear more blended into the surrounding space.