Author Question: Quasars are common in the early Universe because ____ at that time. a. galactic collisions were ... (Read 80 times)

Evvie72 · **on:** Jul 27, 2018

Quasars are common in the early Universe because ____ at that time.

a. galactic collisions were more frequent
b. black hole collisions were more frequent
c. gas and dust clouds were denser
d. galaxies were more isolated
e. central bulges were larger

Question 2

A(n) _______________ is an atom that has gained or lost one or more electrons.

Fill in the blank(s) with correct word