Answer:It seems like you're working on a lesson about the early Earth and its subsystems. Here's a possible completion of the flow chart:1. Formation of the Earth2. Cooling of the Earth3. Formation of the oceans and atmosphere4. Emergence of primordial life forms5. Primordial Organisms begin to thriveThis sequence of events is a general outline of the major milestones in the early history of our planet. Let me know if you'd like me to elaborate on any of these points or help with anything else!Would you like to discuss more about the Earth's subsystems or the early Earth?