Which of the following is the primary technique for determining the absolute age of a rock? a. measuring radioactive decay of element isotopesb. comparing the rock to other geologic featuresc. measuring the dimensions of the rockd. comparing the rock to similar rocks and noting the differences

Answer;

Measuring the radioactive decay of element isotopes.

The primary technique for determining the absolute age of a rock is the measuring the radioactive decay of element isotopes.

Explanation;

The measuring of the radioactive decay of element isotopes to determine the age of rocks is called Radiometric Dating.

Radiometric dating is a method of determining the absolute age of an object such as rocks by comparing the relative percentages of a radioactive (parent) isotope and a stable (daughter) isotope.

i believe it would be the lungs.