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Oxygen doesn’t belong on that list, I think - the earth’s oxygen was made by the first living things.
by czzr 2y ago
Oxygen doesn’t belong on that list, I think - the earth’s oxygen was made by the first living things.
- bongodongobob 2y agoThe didn't make the oxygen, they unlocked it from various molecules and minerals etc. It had to be here first.
- greiskul 2y agoBut I don't think there is anything special on there being oxygen in the cloud of gas that formed the solar system. The distribution of elements following a supernova probably follows some law, and oxygen is low enough on the periodic table that probably quite a bit of it is expected.
- czzr 2y agoTrue - oxygen is very abundant, though, so its presence is not surprising.