Because the early Earth was a large sphere of magma, the earliest rocks that formed here were recycled into the mantle long ago.What is the age of the oldest radiometrically dated rocks discovered on the planet? (Or, what is the age of the oldest remaining rocks on Earth?)
A)6,000 years old
B)4.6 million years old
C)4 billion years old
D)4.6 billion years old

Question

Quizplus · Accepted Answer

The oldest radiometrically dated rocks on Earth are about 4 billion years old. This age reflects the earliest period of Earth's solid crust formation after the planet cooled from its initial molten state.

Because the Early Earth Was a Large Sphere of Magma