Want this question answered?
yes. It gives vital clues to uncover the events that once occurred on earth.
Most of Earth's history has occurred in the Precambrian Era, a time span of over 4 billion years.
precambrian era
Catastrophism
85% of earths history and the earliest era that exists. bacteria mostly survived then and built up oxygen until a mass extinction.The. Era had many extinctions because of large variations in climate is what mesozoicor cenozoic or precambrian which one
4 billon years i think
hi
No. This has not occurred, yet.
What are two ways that's scientists can study earths climates history
they are different
epoch
Nitrogen