How Did the Earths Atmosphere Form

About 4.5 billion years ago, the Earth started to condense from the gas and dust of the primordial solar nebula, along with the Sun and its other retinue of planets and their satellites. The Earth-to-be collected the material of the gaseous solar nebula in an accrued process that took many millions of 

Meanwhile, gases originally trapped below the surface were released into the atmosphere through volcanic eruptions and other crust openings. The atmosphere began to fill with carbon dioxide, nitrogen, and water vapor. Oceans developed as water vapor condensed and fell as rain in ceaseless storms. Large amounts of carbon dioxide were 

---