4 ms·
On earth that was partly because the oceans absorbed a lot of oxygen. And then the rocks. Only once the water was saturated and the rocks had all oxidised did
by mr_toad 4y ago
On earth that was partly because the oceans absorbed a lot of oxygen. And then the rocks. Only once the water was saturated and the rocks had all oxidised did it start to build up in the atmosphere.
- dotancohen 4y agoJudging by the planet's color, much of Mars' surface rocks have already oxidized.