Examlex
Which of these is the smallest unit that natural selection can change?
Absolute Age
A measure of the exact age of a rock, fossil, or other object in years, often obtained through radiometric dating techniques.
Numerical Age
The age of a geological feature or event expressed in years or other units of time, often determined by radiometric dating methods.
Radiometric Age
The determination of the age of a mineral, rock, or archaeological artifact based on the decay rate of radioactive isotopes.
Sedimentary Layer
Stratified deposits formed from the accumulation of mineral and organic particles, often showing distinct bands that indicate different periods of deposition.
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