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					How Many Oceans are There in the World


How        Many         Oceans         are       There        in         the     World

Oceans are the largest water bodies on our planet, which make up the major chunk of
the marine biome. According to scientific data, they cover approximately 71 percent of
the earth's surface area. If you happen to read old books, you may find that there are
four oceans. Nevertheless, you will get a different information in the latest geography
reports. So, exactly how many oceans are there in the world? Is it four or is there any
new addition? More information on 'how many oceans in the world' is discussed in the
following                                                                     paragraphs.




How             many             Oceans             in             the          World?

Previously, there were only four officially recognized oceans in the world. Later by the
year 2000, a new ocean was named and declared by the International Hydrographic
Organization (IHO). And this fifth ocean is called the Southern ocean. It extends from
the southern part of the Pacific ocean, Atlantic ocean and Indian ocean. Discussed below
is a brief explanation concerning how many oceans are there in the world and what are
their                                                                            names:

Pacific                                                                          Ocean
Ever thought which is the deepest ocean in the world? Learn about Pacific ocean facts
and you will come to know the basic information regarding this ocean. Marina trench,
the deepest trench in the world, lies in this ocean. And the Challenger Deep of the
Marina trench is the deepest part of the ocean. Not only it is the deepest of all, but it
is also the largest ocean in the world, extending over a vast area of about 65.3 million
square                                                                            miles.
Atlantic                                                                         Ocean
After the Pacific ocean, the next in the largest and deepest ocean list is the Atlantic
ocean. Extending over an area of 41,100,000 square miles, it is estimated that 20
percent of the earth's surface area is occupied by the Atlantic ocean. The Puerto Rico
trench in the Atlantic ocean is the deepest point, which measures to about 8,648 meters.
It demarcates the boundary of America from Africa and Eurasia.

Indian                                                                        Ocean
Recorded as the third largest ocean on the planet, the Indian ocean covers
approximately 20 percent of the earth's water surface. Amongst the five oceans in
oceanography, it is the only one named after a country. The Indian ocean is
surrounded by India, Indochina, East Africa and Antarctic ocean. The deepest point of
the Indian ocean is identified as the Java trench, with a depth of 7,125 meters.

Southern                                                                            Ocean
Also known as the Antarctic ocean, it is newly added in the world's ocean list. As the
name signifies, it surrounds the south portion of Antarctica continent. Dimension wise,
it is the fourth largest ocean, which covers a greater area than the Arctic ocean. There is
less information about the the deepest point of Southern ocean. However, it is claimed
to be the South Sandwich trench, measuring a depth of approximately 7,235 meters.

Arctic                                                                              Ocean
The smallest of the five oceans, the arctic ocean lies in the northern hemisphere. Depth
wise also, Arctic ocean comes in the last, with its deepest point (Eurasia basin) recorded
to be about 5,450 meters. In the boundary of Arctic ocean, lie North America and
Eurasia. Situated in the polar region, part of the Arctic ocean remains covered by ice all
the year round. Consequently, it is less salty as compared to other oceans.

				
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posted:7/15/2010
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