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  9. Q86

UPPSC PCS 2018 · Question 86 of 142

Consider the following events. 1. First reptiles, 2. First insects, 3. Shelled animals, 4. First mammals. Arrange in chronological order of their origin on the earth.

Science & Tech

  1. A2, 1, 3, 4
  2. B2, 3, 1, 4
  3. C3, 2, 1, 4Correct
  4. D2, 4, 1, 3

Answer: C. 3, 2, 1, 4

Explanation

Shelled animals (Cambrian), first insects (Devonian), first reptiles (Carboniferous), first mammals (Triassic).

Source: https://www.onlyiasexam.com/2021/10/2018-uppsc-pre-solved-question-papers.html

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