Documents History of Earth. Slide 38 - Geologic Time Scale Sequence of events from Earth’s birth to...

History of Earth Slide 38 - Geologic Time Scale Sequence of events from Earthâs birth to present-day (now). Each Era begins after a mass extinction of species. Four main…

Documents EVOLUTION! Gradual Change Over Time. The Record of Life Early Earth=Not So Life Friendly!! ◦...

EVOLUTION! Gradual Change Over Time The Record of Life Early Earth=Not So Life Friendly!! Formed about 4.6 BILLION years ago! Meteor collisions forced gases into atmosphere.…