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  1. en.wikipedia.org › wiki › AntarcticaAntarctica - Wikipedia

    Antarctica ( / ænˈtɑːrktɪkə / ( listen)) [note 1] is Earth 's southernmost and least-populated continent. Situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean, it contains the geographic South Pole. Antarctica is the fifth-largest continent, being nearly twice the size of Australia and larger than ...

    • 14,200,000 km², 5,500,000 sq mi
    • <0.01/km², <0.03/sq mi
    • 1,000 to 5,000 (seasonal)
    • Antarctic
    • Geography and Geology
    • Ancient Antarctica
    • Life in Antarctica
    • History of Its Discovery

    Antarctica is covered by an ice sheet about four kilometres thick. Under the ice it is mostly land, although the ice shelves are over the ocean. The Transantarctic Mountains divide the land between East Antarctica in the Eastern Hemisphere and West Antarcticain the Western Hemisphere. Antarctica has some important features hidden by the ice. One is...

    Scientists say Antarctica used to be much further north and much warmer, moving to where it is now through continental drift. From 2011 to 2013, scientists collected fossils of frogs, water lilies, and shark and ray teeth, showing that these life forms used to live on Antarctica. The frog fossils were about 40 million years old. Scientists say mars...

    Plants

    Few land plants grow in Antarctica. This is because Antarctica does not have much moisture (water), sunlight, good soil, or a warm temperature. Plants usually only grow for a few weeks in the summer. However, moss, lichen and algae do grow. The most important organisms in Antarctica are the planktonwhich grow in the ocean.

    Animals

    One important source of food in the Antarctic is the krill, which is a general term for the small shrimp-like marine crustaceans. Krill are near the bottom of the food chain: they feed on phytoplankton and to a lesser extent zooplankton. Krill are a food form suitable for the larger animals for whom krill makes up the largest part of their diet. Whales, penguins, seals, and even some of the birdsthat live in Antarctica, all depend on krill. Whales are the largest animals in the ocean, and in...

    For a long time, people had believed that there was a great continent in the far south of Earth. They thought this Terra Australis would "balance" the lands in the north like Europe, Asia and North Africa. People have believed this from the times of Ptolemy (1st century AD). He suggested this idea to keep the balance of all known lands in the world...

    • Overall: 14,000,000 km² (5,400,000 sq mi), Ice-free: 280,000 km² (100,000 sq mi), Ice-covered: 13,720,000 km² (5,300,000 sq mi)
    • None
    • At Least 1 (about 1000 people living temporarily)
    • .aq
  2. The history of Antarctica emerges from early Western theories of a vast continent, known as Terra Australis, believed to exist in the far south of the globe. The term Antarctic, referring to the opposite of the Arctic Circle, was coined by Marinus of Tyre in the 2nd century AD. The rounding of the Cape of Good Hope and Cape Horn in the 15th and ...

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    What is the truth about Antarctica?

    What are some interesting facts about Antarctica?

    Why is Antarctica considered to be a continent?

    Why are we not allowed to go to Antarctica?

    • Overview
    • Regions
    • Volcanoes
    • Canyons
    • West Antarctica
    • East Antarctica

    The geography of Antarctica is dominated by its south polar location and, thus, by ice. The Antarctic continent, located in the Earth's southern hemisphere, is centered asymmetrically around the South Pole and largely south of the Antarctic Circle. It is washed by the Southern Ocean or, depending on definition, the southern Pacific, Atlantic, and I...

    Physically, Antarctica is divided in two by Transantarctic Mountains close to the neck between the Ross Sea and the Weddell Sea. Western Antarctica and Eastern Antarctica correspond roughly to the eastern and western hemispheres relative to the Greenwich meridian. This usage has been regarded as Eurocentric by some, and the alternative terms Lesser...

    Volcanoes that occur underneath glacial ice sheets are known by the term "Glaciovolcanism", or subglacial volcanoes. An article published in 2017 claims that researchers from Edinburgh University recently discovered 91 new volcanoes below the Antarctic ice sheet, adding to the 47 volcanoes that were already known. As of today, there have been 138 p...

    There are three vast canyons that run for hundreds of kilometers, cutting through tall mountains. None of the canyons are visible at the snow-covered surface of the continent since they are buried under hundreds of meters of ice. The largest of the canyons is called Foundation Trough and is over 350 km long and 35 km wide. The Patuxent Trough is mo...

    West Antarctica is the smaller part of the continent,, divided into

    East Antarctica is the larger part of the continent,, both the South Magnetic Pole and geographic South Pole are situated here. Divided into

  4. ro.wikipedia.org › wiki › AntarcticaAntarctica - Wikipedia

    Antarctica. Acest articol se referă la regiunea polară. Pentru continent, vedeți Antarctida. ( { {PAGENAME}})  /  90°S 0°E. Antarctica este regiunea polară din sudul Pământului care cuprinde continentul Antarctida și porțiunile sudice din oceanele limitrofe.

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