Oceans
The water component of the earth is called Hydrosphere which covers about 70% of the Earth surface. Out of all water on earth, saline water in oceans, fees and silent groundwater makeup about 97% of it. Only 2.5 - 2.75 percent is freshwater including 1. 75–2% frozen in glaciers ice and snow 0.5 –0.75% is found in groundwater less than 0.01% of it a surface water in lakes and rivers. most of the water on Earth is in oceans. It's divided into five smaller oceans that are _ Pacific, Atlantic, Indian, Southern and Arctic Ocean arranged in decreasing order of their size.
Indian Ocean
- Only ocean named after a country and is deeper than Atlantic Ocean.
- Indian ocean is bordered by Asia to the North, Antarctica to South, Australia to East and Africa to West.
- Third largest body of water in the world.
- It contains numerous continental Islands of volcanic origin ( Mauritius, Seychelles, Andaman and Nicobar). Lakshadweep and Maldives Aarav Coral origin.
- The Indian oceans deepest point is the Sunda deep which located in the JAVA Trench (Indonesia).
- The Indian Ocean is known as the warmest ocean in the world and has lowest oxygen contain in the world.
- The Persian Gulf, Red Sea and Arabian Sea are the most pollution prone area in the Indian Ocean.
- Several rivers like Indus, Ganga, Narmada, Brahmaputra, Zambezi, Jubba and Irrawaddy rivers flow into Indian Ocean.
Pacific Ocean
- It is the largest and deepest ocean of the world.
- Magellan give the ocean its name "Mar Pacifio" that is the Peaceful sea.
- Borders for countries North America, South America, Australia and Asia.
- The ocean is split into two parts that are divided by the equator.
- The deepest trench of the ocean and world is Mariana Trench.
- The Pacific "Ring of Fire" is the world's biggest chain of volcanoes.
- The Pacific Ocean is connected to Arctic Ocean by bering Strait.
Arctic Ocean
- The Arctic Ocean is the smallest and the shallowest of the world's five Ocean but has widest Continental shaft among them all.
- Continents that border the architect including Europe, Asia and North America.
- The Arctic contains less salt then other 4 Ocean due to its low evaporation rates and the large amount of freshwater that is contributed to the ocean by rivers and streams.
- Phytoplankton are the only plant type that live in Arctic Ocean.
- There are lots of Petroleum reserves under the Arctic Ocean.
- Huge part of Arctic Ocean is covered by sea ice.
- All of the Arctic Ocean is located within the Arctic Circle. north pole lies in the middle. of the Arctic Ocean.
Atlantic Ocean
- It is the second largest ocean in the world and has longest coastal line.
- It is a life giver ocean has been a source of food.
- Greenland is the largest island in the Atlantic Ocean.
- Bermuda triangle is located in the Atlantic Ocean.
- Atlantic Ocean is the world's saltiest sea and has abundant number of natural petroleum deposit and gas fields.
- There are four trenches in Atlantic beyond the ocean's depth: Puerto Rico trench, the laurentian abyss,Romanche trench and South sandwich trench.
- Sargasso sea ( sea without a shore) is located completely withen the Atlantic.
- The highest tide in the world are experienced in Atlantic Ocean near the bay of fundy in Canada.
- Cuba,Jamaica and Puerto Rice are volcanic Island. Iceland is the largest island of the volcanic origin.
Southern ocean
- The southern Ocean is located in the southern hemisphere and 4th largest ocean.
- Its deepest point is the South sandwich Trench.
- It's a temperature range from -2 degree to 10 degree centigrade.
- Icebergs can be found in the southern Ocean during any season.
- The circumpolar currents of the southern Ocean flow clockwise from west to east.