Question

_____ are composed of ionized gas trapped in a magnetic arch rising above the surface of the Sun. When seen along the edge of the Sun, they appear pink in color. However, when seen against the Sun's bright surface they appear as dark.

Answer 1

Prominences

Step-by-step explanation:

Their arched shapes show that they are formed of ionized gas trapped in the magnetic field. You see prominences in filtergrams as dark filaments silhouetted against the bright chromosphere.