How do countries mark boundaries on oceans?
How are boundaries understood between various oceans?
How many oceans are there on Earth? What are their names? What are the similarities and differences between the ocean and space? What are the 5 oceans on earth? What are boundaries? How big is specific ocean? Why don't different oceans mix? What are the 7 oceans in the world? What are blue ocean and red ocean strategies? How much water is there in the sea and ocean? What exactly is the difference between a sea and a bay? What abiotic factors are found in the ocean? When looking at the Atlantic Ocean in Google Maps (satellite), you see a lot of horizontal lines in the ocean floor contour from top to bottom.  What do these lines represent? Why have oceans been explored less thoroughly than space? What landforms are found in the ocean basin? How were they created? What is the difference between seabed and ocean crust? 2) Who do lakes, streams, and oceans differ from each other? What is the sea? What the difference between an ocean, a sea and a bay? What are geological and coastal features? How can you differ a bay or gulf from a ocean? Shipping: Which are the important sea lanes in the world? How much water is there in the sea? Why is the water of seas and oceans salty? What is sea? What does it mean to have boundaries? What is nearshore and offshore and how do they differ? What are the straight lines we see on the ocean floor in Google Earth caused by? Where, how and why do deep ocean trenches occur? What are those so many white spots that are seen from a plane on Atlantic ocean? How much water is there in and under the earth's crust?