CoachThe geological time scale is the list of the divisions of the Earth’s history in order — the long spans of its early history, the eras and the geological periods — with the age, in years, of the start of each one. An international chart gives each division its name, its age and its colour.
বইগুলো এখনো বাংলা ভাষায় পাওয়া যায় না — ইংরেজি সংস্করণ দেখানো হচ্ছে।
Earth and Space Sciences · পরিভাষা