science
Grade6
Easy
Question
__________ is known as the division of Earth’s history based on the life forms which lived during that period.
- Geological time scale
- Seafloor spreading
- Prehistoric dinosaurs
- None of the above
Hint:
It is consider as the calendar for the Earth's history and is divided into eons, eras, periods, epochs, and ages.
The correct answer is: Geological time scale
- The geological time scale is the division of Earth’s history based on the life forms that lived during that period.
- This is divided into four eons- Hadean eon, Archean eon, Proterozoic eon, and Phanerozoic eon
- This is represented by the earth's rock strata and fossil evidence.
- Fossils are used for establishing the geological time scale.
- It is timed from the emergence of the major species till their extinction.
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