Question Info

This question is public and is used in 14 tests or worksheets.

Type: Open-Ended
Category: Historical Geology
Level: Grade 6
Tags: mass extinction
Author: busser1
Created: 10 years ago

View all questions by busser1.

Historical Geology Question

View this question.

Add this question to a group or test by clicking the appropriate button below.

Grade 6 Historical Geology

What four characteristics or effects must an event have in order to be considered by scientists to have been a mass extinction?