On average, how often do impacts large enough to produce mass extinction on the Earth occur?
A)once in Earth's history
B)once every thousand years
C)once every hundred million years
D)once every million years
E)once every century

Question

Quizplus · Accepted Answer

On average, large impacts that can produce mass extinctions occur once every hundred million years. While these events can be devastating, they are relatively rare in Earth's history.

On Average, How Often Do Impacts Large Enough to Produce