Phase 1: Valcanoes give out gases:
- Valcanoes created the early atmosphere
- Earths Surface originally molten - million of years
- Eventually it cooled down a little and created a thin crust but valconoes continued erupting.
- Valcanoes released carbon dioxide, water vapour and small amounts of other gases.
- There was virtually no oxygen, it was mainly carbon dioxide.
- The oceans were formed when the water vapour condensed.