Say the proverbial world-wide deluge covers most of the earth's landmass. Suppose that water comes largely from heavy rains, overflowing rivers and swollen lakes. The fresh water mingles with the salty seas...
* What is the resulting ocean: salty fresh water, or diluted salt water?
* After the rainfalls slack off, do subsequent rainstorms increase or decrease? And is their rain salt water or fresh water?
* Would any fresh water even remain after a few years, with most of the world's vegetation underwater?
* If most of the world became a series of islands, what effect would those possibly-salty rains have upon the remaining land-based vegetation?
* Would there be much fresh water left at all? Would it keep welling up from mountain-turned-island springs, or would it all be overwhelmed with salt from the oceans?
* What is it that filters salt water from salt water? I'm guessing that it's evaporation, but is there more to it than that?
Need a drink now. Thanks!