Earth’s Timeline: Geological Eras
Tracing Ancient Earth, from Upheavals to Emergence.
Average68 % -
Questions50
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The Earth's timeline traces the vast timescales of our planet's history, divided into major geological eras. From the Precambrian to the current Cenozoic, each era has witnessed major events, such as the appearance of life, mass extinctions, and the evolution of continents. Understanding these periods sheds light on the history of Earth and life.
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Here are some questions from the quiz Earth’s Timeline: Geological Eras. Click on the "Play" button to see the answers and more...
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What are the subdivisions of a geological period called?
Cycle | Epoch | Zone | Age -
Which epoch of the Quaternary, starting about 11,700 years ago, corresponds to the rise of human civilizations?
Pleistocene | Holocene | Neogene | Eocene -
In which period did fish appear, about 530 million years ago?
Cambrian | Cretaceous | Triassic | Ordovician -
How is a mass extinction defined in the context of geological time?
A relatively short duration | A significant drop in biodiversity | All these answers | A global geographic distribution -
Which is the largest unit of geological time?
Eon | Epoch | Era | Period
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| Earnings | Players |
| 106 | Alan79 |
| 100 | Yoda |
| 82 | DR88 |
| 70 | matt44 |
| 70 | marvin |
| 64 | tron |
| 64 | Sharp |
| 64 | ABrown |
| 64 | corinne75 |
| 58 | Felixy |
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