Respuesta :
The correct answers are
1. There should be a sufficient amount of the selected isotope in the rock.
4. The half-life of the isotope must be long enough to capture the age of the rock.
Good luck!
The correct answers are
1. There should be a sufficient amount of the selected isotope in the rock.
4. The half-life of the isotope must be long enough to capture the age of the rock.
Good luck!