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25-04-2017
Biology

contestada

If scientists determine the age of a rock to be three billion years old, what else do they know?

A) The rock came from outside the solar system
B) The rock was part of a comet
C) The Earth is at least three billion years old
D) The Earth is younger than three billion years old

Respuesta :

genab33 genab33

25-04-2017

C) The Earth is at least three billion years old. :)

Answer Link

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