The formation process for supermassive black holes is linked with ...

[ghost!]

The formation process for supermassive black holes is linked with the formation of galactic ____.
 
  a. disks
 b. clusters
 c. central bulges
  d. coronae
 e. halos

Question 2

A shift in the position of an emission line of an element toward the red or blue is produced by ____.
 
  a. atoms that become ionized
 b. electrons that transfer from a high energy level to a low energy level
  c. electrons that transfer from a low energy level to a high energy level
  d. the intensity of agitation of atoms in a hot gas
 e. the motion of an object toward or away from the observer

[juiceman1987]

Answer to Question 1

c

Answer to Question 2

e