The formation of a galactic central bulge is believed to ____. ...

[humphriesbr@me.com]

The formation of a galactic central bulge is believed to ____.
 
  a. be a slow steady process lasting billions of years
  b. start after the formation of spiral arms
 c. be a violent process which adds mass to the central black hole
  d. begin when the central black hole has reached mature size
 e. continue throughout the galaxy's life body

Question 2

The _______________ is the amount of energy needed to pull an electron completely away from the nucleus.
 
  Fill in the blank(s) with correct word

[xthemafja]

Answer to Question 1

c

Answer to Question 2

binding energy

[humphriesbr@me.com]

Excellent

[jackie]

Thanks for the timely response, appreciate it