Activity for user4757174
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Question | — |
Is an oxygen/nitrogen cycle possible, given a cold enough climate? Suppose for whatever reason the sun's power has weakened. The Earth gets colder. All the water has frozen, and the temperature is getting to around the boiling point of oxygen. Can an "oxygen cycle" be possible, in which oxygen reaches it's boiling point and begins raining, forming lakes, evaporati... (more) |
— | over 5 years ago |