Question
What length of time does the geologic time scale cover?
20.5 billion years
10.1 million years
2.0 million years
4.6 billion years
20.5 billion years
10.1 million years
2.0 million years
4.6 billion years
Answers
GPT-4o mini
The geologic time scale covers approximately 4.6 billion years, which is the estimated age of the Earth itself. Thus, the correct answer is **4.6 billion years**.