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artcher [175]
2 years ago
6

Radioisotopes tell scientists that the earth is how old?

Biology
2 answers:
blondinia [14]2 years ago
5 0
It is 4.6 billion years i think, hope this helps

goldenfox [79]2 years ago
3 0
Radioisotopes tell scientists that the earth is 4.5 billion years old.
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