-The squiggly dark line in the upper left quadrant of the Sun in the image above is called a ___________.
A)solar flare
B)prominence
C)sunspot
D)filament

Question

-The squiggly dark line in the upper left quadrant of the Sun in the image above is called a ___________. 
A)solar flare 
B)prominence 
C)sunspot 
D)filament

Quizplus · Accepted Answer

The squiggly dark line in the upper left quadrant of the Sun in an image is typically called a filament. Filaments are structures on the Sun that appear as dark lines when observed against the bright solar disk. They are made of cooler gases than their surroundings and are essentially the same phenomenon as prominences, but viewed from a different angle. When seen at the edge of the Sun, they appear as prominences, but when viewed against the solar disk, they appear as dark filaments.

-The Squiggly Dark Line in the Upper Left Quadrant of the Sun