Question

what major even occurred during the precambrian time?
first life forms, dinosaur evolution, formation of pangae

Answer 1

The major event that occurred during the Precambrian time was the emergence of the first life forms. The Precambrian spans from the formation of the Earth about 4.6 billion years ago to the beginning of the Cambrian period around 541 million years ago. During this extensive time, simple life forms, such as prokaryotes (bacteria and archaea) and later, more complex single-celled organisms (like eukaryotes) appeared. Dinosaur evolution and the formation of Pangaea occurred much later, during the Mesozoic era.