Someone is studying some rock layers near there home. They uses the terms Precambrian, Paleozoic, Mesozoic, and Cenozoic to name them in order of their age. What are all these terms part of?

These are the types of Geological Ages, which have existed throughout the creation of the planet Earth. We'll look at each of the eras our planet had to go through for it to make it to our day.

Explanation:

A geological era is a formal geochronological unit of the geological time scale that represents the time corresponding to the duration of an era, the equivalent stratigraphic chronological unit that includes all the rocks formed in that time. Eras are one of the major divisions of geological time, they are subdivisions of eons and are further divided into periods.

According to scientists, the Earth was formed about 4.6 billion years ago as a result of a great explosion of gas and cosmic dust; as it cooled down, the earth's crust, seas and mountains were formed.

Scientists have studied the rocks in detail looking for any evidence to reconstruct the history of the planet and the life that developed on it.

According to the characteristics of the rocks and the fossils found in each of their strata, the history of the Earth has been divided into stages called geological eras; each era has a specific duration and characteristics and there are four fundamental geological eras: Precambrian, Palaeozoic, Mesozoic and Cenozoic.