[granite]

We didn’t have oceans then, but we have them now. I often wonder how all the water got here, and is it still coming? Is that why the sea level is rising?

[SunkenCiv]

There were oceans within the first 100 million years, but the salinity is somewhat new. :^)

http://www.freerepublic.com/focus/bloggers/1250694/posts

http://www.freerepublic.com/tag/louisfrank/index

[PAR35]

I often wonder how all the water got here

Read the first six chapters of Genesis. That will answer a lot of your questions.

[jmacusa]

Some of the water got here on comets and asteroids. For some million or so years after the Earth began to form it rained for about a few thousand years.