Multiple choice

For how many years were dinosaurs in existence?

  1. 400 million years

  2. 275 million years

  3. 165 million years

  4. 10 million years
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Dinosaurs first appeared during the Triassic Period (about 230 million years ago) and went extinct at the end of the Cretaceous Period (65 million years ago), spanning roughly 165 million years.

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