GEOLOGY

Detailed explanation-1: -So, the correct option is ‘Precambrian, Palaeozoic, Mesozoic, Cenozoic’.

Detailed explanation-2: -From oldest to youngest, these are the Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and Permian. Note that in the United States, the Carboniferous is divided into two separate periods: the Mississippian and the Pennsylvanian.

Detailed explanation-3: -The eras are the four major divisions of the geological time scale: Precambrian, Paleozoic, Mesozoic, and Cenozoic.

Detailed explanation-4: -Eons, eras, periods, epochs, and ages are the geologic time divisions, with eons being the longest and ages being the smallest. 3. What is the correct order of eras from oldest to youngest? Precambrian, Paleozoic, Mesozoic, and Cenozoic are the four primary eras in order of age.

Detailed explanation-5: -The earliest time of the Earth is called the Hadean and refers to a period of time for which we have no rock record, and the Archean followed, which corresponds to the ages of the oldest known rocks on earth. These, with the Proterozoic Eon are called the Precambrian Eon.