First of all, i have tried finding answers on internet and too using google. But either everyone is talking about measuring sea levels and the acceptance of fifth ocean or i am not using correct keywords.
**My question is** if ocean is a single water body, then why it is divided into 5. What’s the basis of division? Does two different seas have difference in water? Because i have seen a photo some years ago about 2 Ocean meeting but not dissolving. Is that thing real?
Edit: THANKYOU ALL OF YOU FOR YOUR ANSWERS
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For the same reason you have six different names for major segments of your one body. Each part is different from each other even though they’re made up of mostly the same stuff and the different names make it easier to identify the particular part.
Each ocean is connected and made up of mostly the same thing (salt water) but each one has it’s own properties and ecosystem and due to currents they don’t mix together all that much.
But really the biggest reason is navigation. Just like the land being divided up into different geographic regions, dividing the water on the planet up into oceans makes navigation easier as there is a label attached. If you’re in the ocean south of India, it’s easier to grab the chart of the area if it’s labelled “Indian Ocean” and also it’s easier to organize said charts by the particular regional ocean.
The only exception to this would be the North and South Atlantic and Pacific, but in those cases there isn’t anything significant dividing the two regions other than the equator.
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