Use the excerpt from an online article to answer the question.
“While the big bang theory is the most popular modern theory of how the universe formed, it is incomplete.”
Which question does the big bang theory leave unanswered?
(1 point)
Responses
When did the universe form?
When did the universe form?
What is the temperature of deep space?
What is the temperature of deep space?
How did galaxies and stars form?
How did galaxies and stars form?
What is the future of the universe?