Multiple choice

Rock layers above and below fossils make it clear that mass extinction occurred in what manner?

  1. quickly, during a catastrophic event

  2. slowly, over millions of years

  3. quickly, due to a single predator

  4. fossil records have not recorded mass extinctions

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Mass extinctions are characterized by a sudden disappearance of many species from the fossil record, often indicating a catastrophic global event rather than a slow, gradual process.