Unknown facts

Unknown Facts about Seas and Oceans | Unknown Facts

We know that 1/3 of the earth is surrounded by water. Mainly these are oceans and seas but, 3% it contains water for drinking from the source of the river. All thing we know about oceans and seas up to this only. I know you are bad to hear this but this is the truth. If we compare our knowledge with the Galaxy or else to oceans and seas then you will find that we know less about Oceans and Seas compare to Galaxy or something else.

Maybe you know that there is a difference is seas and oceans but if you don’t know then I will tell you this in brief. But before this, I want to discuss with you some more stuff about oceans and seas. So let me start, Earth is the only known planet or moon to have large bodies of liquid water on its surface. Well, you glad to know that our planet is the only planet that has enough atmospheric pressure to prevent liquid surface water from evaporating into space not too hot or not too cold.

Although we don’t yet know of any other planets with liquid water oceans, it’s likely that they do exist and we just haven’t found them. In our own solar system, there is growing evidence that the planet Mars may have liquid water not on the surface but underground. There is also strong evidence that liquid oceans may be hidden beneath the thick icy surfaces of three of Jupiter’s moons (Europa, Callisto, and Ganymede) and two of Saturn’s moons (Titan and Enceladus).


What are Seas and Oceans?

An ocean (from Ancient Greek Ὠκεανός, Okeanós) the sea of classical antiquity) is a body of saline water that composes much of a planet’s hydrosphere. On Earth, an ocean is one of the major conventional divisions of the World Ocean.

Pic of Sea near beach

A sea is a large body of salt water that is surrounded in whole or in part by land. More broadly, “the sea” is the interconnected system of Earth’s salty, oceanic waters—considered as one global ocean or as several principal oceanic divisions.


Credit: Wikipedia.org

Difference Between Oceans and Seas 

Difference b/w Seas and Oceans

Many people speak oceans and seas interchangeably but there is a lot of difference between the Ocean and sea. If you want to know a simple and easy difference between these two terms geographically then here is your answer. Seas are smaller compared to the oceans and are located near the land and the place where the ocean meets. But if want to know the brief difference between Oceans and Seas then below you can read it.


1. Oceans are the large bodies that exist on the earth.

2. An ocean consist of saline water that consist of large portion of hydrosphere on the Earth.

3. In the year 2000, there are only four known oceans but now, there are five Oceans.

4. There is no official description of Ocean officailly except for a vague definition stating a vast body of saline water.

5. Ocean is the largest body of water which contains approximately 230,000 types of marine life.

6. The range of ocean is upto 13,000 feet to 35,000 feet.


1. Sea is the large body but smaller than the ocean that may or may not connect to the ocean.

2. Seas are mainly located near the land and are used to connect the land with an ocean.

3. It is defined as, “a division of an ocean or a large body of salt water partially enclosed by land.”

4. Seas that are connected to the land are changed into beach.

5. Seas have heavy waves that do not visible in Oceans.

High waves in sea

6. The word ‘sea’ is derived from a pure Germanic word.


Unknown Facts About Seas and Oceans

1. Every year Finland gets about 7km2 bigger because it is rebounding from the weight of ice age glaciers and rising out of the sea.

2. Baltic sea doesn’t mix with the North Sea due to the difference of the density.

3. Fifty percent of the United States (in terms of our complete legal jurisdiction, which includes ocean territory) lies below the ocean.

Marine life in Sea

4. We have more detailed maps of the surface of Mars than we do of Earth’s oceans.

5. The United Nations estimates that there are more than 3 million shipwrecks on the ocean floor.

6. One of Dubai’s more famous creations, The World Islands, are sinking back into the ocean.

7. Sea ice is drinkable because it has a tenth as much salt as sea water does.

8. If we extract all the gold out of the ocean, there would be enough for everyone to have 9 pounds of gold.

9. We have more detailed maps of the surface of Mars than we do of Earth’s oceans.

10. The United Nations estimates that there are more than 3 million shipwrecks on the ocean floor.

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