A 1/1,000,000 species per year extinction rate, which is the estimated average rate of extinction in the history of life on the earth, is called ____ extinction.

Question

Quizplus · Accepted Answer

The 1/1,000,000 species per year extinction rate is considered the background extinction rate because it reflects the typical rate of extinctions that occur between mass extinction events. This rate is estimated to be the average extinction rate in the history of life on earth. Hence, option A is the correct answer.

A 1/1,000,000 Species Per Year Extinction Rate, Which Is the Estimated