Age of fossils in the past was generally dete | vedclass

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(A) In the past,the age of fossils was primarily determined using radioactive dating techniques like carbon dating. However,modern advancements have i

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Electron spin resonance $(ESR)$ and fossil $DNA$

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(A) In the past,the age of fossils was primarily determined using radioactive dating techniques like carbon dating. However,modern advancements have introduced more precise methods for dating fossils and geological strata. Electron spin resonance $(ESR)$ is a highly accurate technique used to date geological materials and fossils by measuring the accumulation of trapped electrons due to natural radiation. Additionally,the analysis of ancient $DNA$ (fossil $DNA$) has provided revolutionary insights into the evolutionary history and timelines of various organisms,allowing scientists to revise previously established evolutionary periods.

Age of fossils in the past was generally determined by the radio-carbon method and other methods involving radioactive elements found in the rocks. More precise methods,which were used recently and led to the revision of the evolutionary periods for different groups of organisms,include:

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