We also don't know how life originates and to what extent it evolves in an orderly pattern.
We're also not certain about the origination of life.
We are certain when it comes to the topic of the origins of life.
A dog has a stick in his mouth and is running around.
Three people are in a kick boxing match.
A girl is at her desk in a classroom.
The facades of buildings have elaborate 3D decorations.
A thin young woman is in line behind two men.
It lasted indefinitely.