The largest mass extinction event in the history of the Earth occurred at the end of the _______ period.
a. Cambrian
b. Ordovician
c. Permian
d. Devonian

Respuesta :

The largest mass extinction event in the history of the Earth occurred at the end of the C) Permian period. 

The largest mass extinction event in the history of the Earth occurred at the end of the permian period.