Monday 27 February 2017

Continents and Mountain Ranges- Lithosphere:

Lithosphere is divided into 7 continents- Asia, Africa, Europe, North America, South America and Antarctica.


Our Earth is divided by an Imaginary line called Equator. The Upper part of the is called Northern Hemisphere and the Lower part is called Southern Hemisphere.

Most of the Land part of the earth lies in Northern Hemisphere.

Asia is the largest continent of all. It covers about one-third of the total land area of the earth. The continent lies in the Eastern Hemisphere. The Tropic of Cancer (23.5 degree North) passes through this continent. Asia is separated from Europe by the Ural mountains, the Caucasus mountains and the Caspian Sea in the west. The combined landmass of Europe and Asia is called the Eurasia (Europe + Asia). It has the highest Mountain peak- Mt Everest (8848 m in height).

Africa is the second largest continent after Asia. The Equator or 00 latitude runs almost through the middle of the continent. A large part of Africa lies in the Northern Hemisphere. It is the only continent through which the Tropic of Cancer, the Equator and the Tropic of Capricorn pass.

The Sahara Desert lies in the North Africa and The Kalahari Desert in South of Africa. This continent has the largest river called Nile, the longest river (6,853 km) in the world. Nile river end into the Mediterranean Sea in the North of Africa. 

North America is the third largest continent of the world. It is linked to South America by a very narrow strip of land called the Isthmus of Panama. The continent lies completely in the Northern and Western Hemisphere. Three oceans surround this continent- the Pacific Ocean, the Atlantic Ocean and the Arctic Ocean. It also has Rocky Mountains in its west region.

South America lies mostly in the Southern Hemisphere. The Andes, world’s longest mountain range, runs through its length from north to south. South America has the world’s largest river, the Amazon.

Antarctica, completely in the Southern Hemisphere, is a huge continent. The South Pole lies almost at the center of this continent. As it is located in the South Polar Region, it is permanently covered with thick ice sheets. There are no permanent human settlements. Many countries have research stations in Antarctica. India also has research stations there. These are named as Maitri and Dakshin Gangotri research center by India.

Europe is much smaller than Asia. The continent lies to the west of Asia. The Arctic Circle passes through it. It is bound by water bodies on three sides. This highly developed continent and They have their own union called Europe Union. The large proportion of a level and well watered lowland mostly in the central part and have been bought under cultivation. Hill slopes and all those lands are not very much fertile nor quite level, hence used for pastures.

Australia is the smallest continent that is entirely in the Southern Hemisphere. It is surrounded on all sides by the oceans and seas. It is called an island continent.

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