nothing
oceans are mass lands cover with water in Greek it is called Pangea.
The River that forms a border between Oklahoma and Texas is the Red River. The river was named for the red-bed country of its watershed.
i have on clue
A nested watershed is simply a watershed within a watershed. An example might be the Platte River watershed which is a nested watershed within the Missouri River watershed which in turn is nested within the Mississippi River watershed.
There is actually no difference between a divide and a watershed. Both divides and watersheds are lines implemented to designate the separation between drainage basins.
James River Watershed
The term watershed is used to describe a smaller area of land that drains to a stream, lake or wetland. Many watersheds can reside within a large river basin.
I think you refer to the Watershed.... say rain falls on a mountain side & some of it eventually flows into the River Anything & some flows into the next valley, the River Zoobeedoobeedoo. Where the dividing line is, (Between the Anything & the Zoobeedoobeedoo) is the Watershed.
* The Roanoke River Watershed. * The Middle James River Watershed, * The Rappahanock RiverWatershed.
river watershed
connecticut watershed
A watershed is an area of land where all the water drains to a common point such as a lake or river. A wetland is an area of land that is covered by water, either temporarily or permanently, and supports unique plant and animal species adapted to wet conditions. Wetlands can be part of a watershed but not all watersheds contain wetlands.