Write out a general summary of the history of life on Earth. Include when and how it started, how it developed and changed through time, and the role of environmental conditions to its progression.
Touch on geologic time and fossils, organization of life, rocks & fossils, continental drift and plate tectonics, Precambrian fossils records, ocean bottom faunas, marine predators and the evolution of terrestrial communities, early land mammals etc.
at least 250 words
you do not need to cite resources.