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6.Evolution
normal
Age of fossils in the past was generally determined by 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, includes
A
Electron spin resonance $(ESR) $ and fossil $DNA$
B
Study of carbohydrates/proteins in rocks
C
Study of carbohydrates/proteins in fossils
D
Study of conditions of fossilization
Solution
It's Obvious
Standard 12
Biology