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Biology, 12.01.2020 04:31, makaylashrout77
Radioisotopes tell scientists that earth is how old?
a. 65 million years
b. 500 million years
c. 4.5 billion years
d. 13.4 billion years
![answer](/tpl/images/cats/otvet.png)
Answers: 1
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Radioisotopes tell scientists that earth is how old?
a. 65 million years
b. 500 million...
a. 65 million years
b. 500 million...
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