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Geological Time Scale
General Studies
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Geological Time Scale

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Geological Time Scale is an important topic in General Studies for competitive exam aspirants. This guide gives you a clear, exam-focused explanation of Geological Time Scale, shows how it is typically asked, and pairs it with solved practice questions so you can learn the approach and test yourself right away. Work through the questions below to build speed and accuracy.

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Q1Consider the following statements: The Precambrian Eon accounts for about 88% of Earth’s geological history. The Phanerozoic Eon follows the Precambrian Eon. The Paleozoic Era is part of the Precambrian Eon. Which of the statements given above is/are correct?MediumSolve →Q2Which of the following is the correct chronological order of the Eras within the Phanerozoic Eon?MediumSolve →Q3The extinction of the dinosaurs occurred at the end of which Era?MediumSolve →Q4The Cambrian Explosion refers to:MediumSolve →Q5Arrange the following periods in correct order (earliest to latest): Ordovician Devonian Silurian CarboniferousMediumSolve →Q6The ‘Age of Fishes’ is associated with which Period?MediumSolve →Q7The earliest known fossils of life (stromatolites) are found in which Eon?MediumSolve →Q8Which of the following eras is known as the ‘Age of Mammals’?MediumSolve →Q9Consider the following statements about the Quaternary Period: It is the most recent period of the Cenozoic Era. It includes the Holocene and Pleistocene Epochs. Which of the statements is/are correct?MediumSolve →Q10Which Period is also known for extensive coal formation?MediumSolve →

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