Biology, 03.01.2020 20:31 vitalitas

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

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