Image of the Posters Earth Evolution: The Intersection of Geology and Biology (image) National Science Foundation Share Print E-Mail Caption This educational poster shows how geological and biological processes have together shaped Earth's environment during its 4.6 billion-year history. Using plain language and explanatory illustrations, the poster marries two sets of phenomena that are intertwined in nature but often taught separately in the classroom. Credit Educational Resources Group, Howard Hughes Medical Institute and Astronaut 3 Media Group Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.