What do we mean by a mass extinction?
A) The extinction of a large fraction of the world's plant and animal species in a relatively short period of time
B) The extinction of large animals, such as dinosaurs
C) An extinction caused by the impact of an asteroid or comet
D) The extinction of any species of plant or animal that has mass

Question

Quizplus · Accepted Answer

A mass extinction refers to the extinction of a large fraction of the world's plant and animal species in a relatively short period of time. This can be caused by a variety of factors, including climate change, asteroid impacts, volcanic eruptions, and human activity. The extinction of large animals, such as dinosaurs, is just one example of a mass extinction event. The key characteristic of a mass extinction is the widespread and rapid loss of biodiversity.

What Do We Mean by a Mass Extinction