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maxonik [38]
3 years ago
11

Which best describes radiometric dating?

Biology
2 answers:
melisa1 [442]3 years ago
7 0

i think the correct answer is B

its the action in that a radioactive isotope tends to break down into a stable isotope

DIA [1.3K]3 years ago
3 0

The answer is; B


Rocks have naturally occurring and spontaneously radioactive atoms in them, such as carbon-14. These element isotopes decay into other types of atoms over millions of years. Therefore, by measuring the amount of these radiometric substances, and knowing the half-life of the isotopes, it is possible to postulate the age of a rock to within certain ranges of error.


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A.C. Allison confirmed this in his experiment which showed that people who had sickle cell mutations in the gene, beta hemoglobin were mostly found in regions where malaria was prevalent. Their genes had also been modified such that they were resistant to malaria.

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