According to the unified model of active galactic nuclei, ...

[Mollykgkg]

According to the unified model of active galactic nuclei, ___________ is in the center surrounded by _____________with a Type 1 Seyfert or Type 2 Seyfert being seen depending on the viewing angle.
 
  a. a supermassive black hole; an accretion disk
  b. a supermassive black hole; empty space
  c. no black hole; an accretion disk
  d. no black hole; empty space

Question 2

Stars in a star cluster
 
  a. all have the same age.
  b. all have the same chemical composition.
  c. all have the same luminosity.
  d. all of the above.
  e. all have the same age and all have the same chemical composition.

[frre432]

Answer to Question 1

a

Answer to Question 2

e

[Mollykgkg]

YES! Correct, THANKS for helping me on my review

[6ana001]

Thanks for the timely response, appreciate it