Seriously, though, just because there's no water on the surface doesn't mean there's no water beneath the surface, and doesn't preclude the occurence of rain. I don't think there is a contradiction. Granted, I don't know what a planet completely covered with a city would be like. Who knows?
Seriously, though, just because there's no water on the surface doesn't mean there's no water beneath the surface, and doesn't preclude the occurence of rain. I don't think there is a contradiction. Granted, I don't know what a planet completely covered with a city would be like. Who knows?