In the history of planet Earth, there have been ________ major extinctions.
A) 2
B) 6
C) 13
D) an uncounted, but very large, number of

Question

Quizplus · Accepted Answer

There have been 5 major extinctions in the history of Earth: the Ordovician-Silurian extinction, the Late Devonian extinction, the Permian-Triassic extinction, the Triassic-Jurassic extinction, and the Cretaceous-Paleogene extinction. These are also known as the “Big Five”.

In the History of Planet Earth, There Have Been ________