Define geologic time

Answer 1

The geological time scale organizes a long period of time.

Answer 2

Geologic time spans the history of the planet Earth, from formation to the present, a period of around 4,600,000,000 years. The largest groupings of geologic time are eons, followed in descending order by era, period, epoch, and age.

Answer 3

The geological time scale is the geologic history of the planet from formation to the present. It starts with large divisions of time called eons and is subdivided into successively smaller units of time based on dominant lifeforms, extinction events, even climate.

Answer 4

Vast stretches of time marked by broad changes in environment and biota delineate the various geologic epochs and eras.

For example, dinosaurs lived during the Mesozoic Era, which is further divided into the Triassic, Jurassic, and Cretaceous Epochs. We live in the Cenozoic Era, and the current Epoch is known as the Holocene. The Cenozoic is noted by a proliferation of flowering plants, as well as the terrestrial dominance of mammals.

Answer 5

Geologic time refers to the vast stretches of time over which Earth's geological processes have unfolded, shaping the planet's landforms and environments. It is usually divided into eons, eras, periods, epochs, and ages to help organize and understand the immense expanse of Earth's history.

Answer 6

A table that divides up earths histoty into eons, eras,periods,and epochs