Question

According to scientists, the big bang occurred approximately ........... years ago.

• A. 100 million
• B. 100 thousand
• C. 1 billion
• D. 13.7 billion

Answer 1

The correct option is D 13.7 billion

The Big Bang theory is an effort to explain what happened at the very beginning of our universe. It explains about the singular huge explosion unimaginable. The big bang theory occurred 13.7 billion years ago. Thus, the correct answer is option D.