Question

Give an account of geological time scale citing the biological features.

28 Jan 2026
Answer :
Word Count : 231
The geological time scale is a chronological framework that represents the history of the Earth and life based on stratigraphic, paleontological, and radiometric evidence. It is divided into eons, eras, periods, and epochs, each marked by characteristic biological events. The earliest eon, Archean, witnessed the origin of life in the form of simple prokaryotic organisms such as bacteria and cyanobacteria,
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