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Biodiversity, Conservation and Environmental Issues — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYBiodiversity, Conservation and Environmental Issues2 Marks
Question
When did major mass extinction events occurred ?
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Answer

In the following geological time scale, plants as well as animal groups underwent major mass extinctions.
  1. Between Cretaceous and Coenozoic period.
  2. Between Triassic and Jurassic period.
  3. Between Permian and Triassic period.
  4. Between Devonian and Carboniferous period.
  5. Between Ordovician and Silurian period.

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