Natural water area played a major part of the surface of planet Earth, and the world's oceans and seas in the water area occupy about 97% (or about 70% of the entire surface of the Earth).The rest belongs to the water area of rivers, lakes, reservoirs, swamps, glaciers.
Pacific, Atlantic, Arctic and Indian - the world's oceans, called by scientists until 2000.Since 2000, as the fifth part of the ocean has been allocated Southern Arctic.
deepest ocean in the world and the most extensive - Pacific.It covers an area larger than the entire land area of the world, and in its depths is the deepest place on Earth - the Mariana Trench.Ocean Waves wash western coasts of North and South America, Australia, the eastern coast of Asia.In the Northern Hemisphere, it connects to the Arctic Ocean through the Bering Strait, and in the south - up to the coast of Antarctica.A lot of its banks are hilly and mountainous terrain, and within its waters are a large number of islands.
Naturally, all the oceans of the world have a very different character.So, it should be noted that the Pacific Ocean is famous for frequent tsunami that reached the shores of some fifty meters in height, as well as the fact that it accounts for more than half of the total biomass of aquatic depths.
The second largest is the Atlantic Ocean.Its bottom is rather complicated, with multiple basins.Unlike the Pacific, the Atlantic does not have in its waters of so many islands.In the north it meets the Arctic Ocean.Atlantic is known that the area of the rivers flowing into it, much more than the area of the rivers that flow in any other ocean.In addition, it is very indented coast, and washed by the waves of a large number of known seas.
oceans of the world, as mentioned above, include also the coldest: Arctic.It is situated north of the Arctic Circle.Almost all of its area is covered by ice almost all year round.Ocean strategically very important becauseallow to go from America to Russia the shortest path.Especially this fact was important in the war.Near the shores of the Arctic Ocean forms a lot of the Seas, is connected to the Atlantic and Pacific oceans.Due to the constantly low temperature flora and fauna of its waters it is represented by few species.
Indian Ocean largest water area belongs to the third place.It is adjacent to Africa and Australia, Asia and Antarctica.Its waters wash largest island Madagascar and Sri Lanka, and are loved by many tourists Maldives, Seychelles, Bali.Its waves, swirling in perfect pipe loved by many surfers and his bowels are very rich deposits of natural gas and oil.
As already mentioned, in the world's oceans have begun to include the Southern Ocean.Otherwise, it is called the Antarctic.Its waters, he washes the shores of Antarctica, includes the southern part of the waters of the Pacific, Atlantic and Indian oceans.In the practice of the maritime waters of the name almost stuck, due to the fact that it is not included in any allowance for the corresponding theme.Meanwhile, in the waters of this area ranks fourth among all oceans.
