| Display title | Earth:Geological history of oxygen |
| Default sort key | Geological history of oxygen |
| Page length (in bytes) | 13,100 |
| Namespace ID | 3028 |
| Namespace | Earth |
| Page ID | 763922 |
| Page content language | en - English |
| Page content model | wikitext |
| Indexing by robots | Allowed |
| Number of redirects to this page | 0 |
| Counted as a content page | Yes |
| Page image |  |
| HandWiki item ID | None |
| Edit | Allow all users (infinite) |
| Move | Allow all users (infinite) |
| Page creator | imported>Steve Marsio |
| Date of page creation | 13:18, 5 February 2024 |
| Latest editor | imported>Steve Marsio |
| Date of latest edit | 13:18, 5 February 2024 |
| Total number of edits | 1 |
| Recent number of edits (within past 90 days) | 0 |
| Recent number of distinct authors | 0 |
Description | Content |
Article description: (description)
This attribute controls the content of the description and og:description elements. | Before photosynthesis evolved, Earth's atmosphere had no free oxygen (O2). Small quantities of oxygen were released by geological and biological processes, but did not build up in the atmosphere due to reactions with reducing minerals.
Oxygen began building up in the atmosphere at approximately 1.85... |
