Usually it is fresh. There are exceptions: The Dead Sea (37% salinity) is so salty barely lives in it and the Salt lake near Salt Lake City is so salty people can easily and comfortably float in it.
I think that the two regions would be the Temperate Zone and the Polar Zone, as they're the only climate regions to the south of the 20<span>°S latitude. Check a world latitude map and compare it with a climate map if you're still unsure.</span>
The plate may move toward each other or away from each other or past each other
