The age of the Earth is currently thought to be:
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 4.5 billion years.
The age of the Earth is currently thought to be approximately 4.5 billion years. This estimate is based on radiometric age dating of meteorite material and Earth’s oldest rocks, as well as the ages of lunar samples. This timeline provides a framework for understanding the formation and development of Earth, the solar system, and the early conditions that led to the emergence of life.