Question

The present estimate of the Earth's age is about ________ years.

1) 2.8 trillion
2) 500 million
3) 50 million
4) 2.8 billion
5) 4.6 billion

Answer 1

The Earth is estimated to be approximately 4.5 billion years old.

Step-by-step explanation:

Earth is estimated to be approximately 4.5 billion years old. Radiometric dating methods have been used to determine the age of the Earth's oldest rocks and fossils, which fall within the range of 4 to 5 billion years old. This estimate is supported by scientific evidence and plays a crucial role in understanding the planet's geological history.