Manang biday meter?
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carbon consumption of animals and plants stops after death and since then, only the decaying process
of C-14 occurs continuously. In case of dead bodies of plants and animals, instead of remaining
constant, the ratio between C-14 and C-12 changes continuously as C-12 is non-radioactive. The time
passed since the death of a plant or animal can be calculated by measuring the radioactivity of C-14 and
ratio of C-14 to C-12 present in their body. This is ‘carbon dating’ method. It is used in paleontology and
anthropology for determining the age of human fossils and manuscripts. Once the age of fossil been
determined by such technique, it becomes easy to deduce the information about other erstwhile
organisms. It seems that vertebrates have been slowly originated from invertebrates.
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