Continental Drift: the gradual movement of the continents across the earth's surface through geological time.
The big five mass extinctions
The Cretaceous–Paleogene (K–Pg) extinction event, also known as the Cretaceous–Tertiary (K–T) extinction, was a sudden mass extinction of some three-quarters of the plant and animal species on Earth, approximately 66 million years ago.
What is Time?
Author: Jazmin Gannon
A place to grow