The "big bang" that produced the universe is thought to have occurred
A) 40 to 50 billion years ago.
B) 12 to 14 billion years ago.
C) 4.6 billion years ago.
D) 4 million years ago.

Question

Quizplus · Accepted Answer

The age of the universe is estimated to be between 12 and 14 billion years old based on observations of cosmic microwave background radiation and the rate of the universe's expansion. This is when the "big bang" is thought to have occurred. Options A, C, and D have incorrect timelines for the age of the universe.

The "Big Bang" That Produced the Universe Is Thought to Have