Question

According to the big bang theory, after the "bang," the universe remained dark until about _____ later, when neutral atoms began to form.

A) one billion years
B) three minutes
C) three billion years
D) 300,000 years

Answer 1

C) Three billion years is the current prediction according to the big bang theory. 

Answer 2

According to the big bang theory, after the "bang," the universe remained dark until about _____ later, when neutral atoms began to form.

C