Refer to the figure.

-Based on the figure, the largest mass extinction occurred about _______ million years ago.
A) 65
B) 180
C) 250
D) 300

Name: Refer to the figure. -Based on the figure, the largest mass extinction occurred about _______ million years ago. A) 65 B) 180 C) 250 D) 300
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Question

Refer to the figure.
 
-Based on the figure, the largest mass extinction occurred about _______ million years ago.
A) 65 
B) 180 
C) 250 
D) 300

Quizplus · Accepted Answer

The largest mass extinction, known as the Permian-Triassic extinction event, occurred about 250 million years ago.

Refer to the Figure