Question

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Question
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

What is the future of the universe?
What is the future of the universe?

When did the universe form?
When did the universe form?

How did galaxies and stars form?
How did galaxies and stars form?

What is the temperature of deep space?

Answer 1

The big bang theory is often critiqued for not fully explaining how galaxies and stars formed after the initial expansion of the universe. Therefore, the best answer to the question about what the big bang theory leaves unanswered is:

**How did galaxies and stars form?**