Briefly summarize the evolution of the atmosphere, starting with the formation of earth and ending with the evolution of eukaryotic organisms.

Here are the Brief summary of the evolution  :

- After earth formed, Volcanoes emtted gas and meteroite brought ice

- Earth cooled and the atmosphere thicken, meanwhile the ocean is also formed

- Cyanobacteria increased the amount of O2

- O2 released into atmosphere and Eukaryotes evolved

hope this helps

c.more precipitation,but only when emission levels.