Based on observations of the universal expansion, the age of the universe is about _ .
A)14 trillion years
B)14,000 years
C)14 million years
D)14 billion years

Question

Quizplus · Accepted Answer

The measurement of the universal expansion suggests that the universe is around 14 billion years old, so option D is the correct answer. Option A is way off, as it would exceed the age of the known universe by several orders of magnitude. Option B is also far too short, and conflicts with numerous dating methods used to determine the age of our planet and star. Option C is also not nearly long enough, as the emergence of life on Earth is now known to be older than 3 billion years. Therefore, the only reasonable option is D.

Based on Observations of the Universal Expansion, the Age of the Universe