Solved UPSC CDS/OTA Question
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Q · Geological Time ScaleMedium · 45s
Consider the following about the Tertiary Period: It preceded the Quaternary Period. It is divided into Paleogene and Neogene periods in modern classification. Which is/are correct?
TopicGeological Time Scale
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained — no skipped algebra.
Explanation:Old usage ‘Tertiary’ has been replaced by Paleogene and Neogene in the modern time scale.
Final Answer: Option C — Both 1 and 2