<h2><em><u>I believe the correct answer is Based on the time scale, it would be that the atmosphere was formed after microscopic life appeared on Earth that is the correct inference. It is very clear in the picture as the microorganisms appear before the atmosphere. Hope this answers the question. </u></em></h2><h2><em><u /></em></h2><h2><em><u>Hope this helped.</u></em></h2>
