What scientific avenue of investigation gave scientists the best estimate of the absolute age of the Earth?

Question

Quizplus · Accepted Answer

Radiometric or isotopic dating, which involves measuring the decay of radioactive isotopes in rocks and minerals, gave scientists the best estimate of the absolute age of the Earth, which is approximately 4.54 billion years old. Paleontological dating and carbon dating can provide relative dates but are less precise and accurate.

What Scientific Avenue of Investigation Gave Scientists the Best Estimate