:max_bytes(150000):strip_icc():format(webp)/Geologica_time_USGS-59fb2ce3c6a0f500193cd761.png?resize=720%2C426&ssl=1&crop=1)
The Four Eras of the Geologic Time Scale
The Geologic Time Scale is the history of the Earth broken down into four spans of time marked by various events, such as the emergence of certain species, their evolution, and their extinction, that help distinguish one era from another. Đọc tiếp The Four Eras of the Geologic Time Scale