Page 234 - 9 teachers social book 9 @ 2077 ctp_Neat
P. 234

fall in this region. The Great Dividing Range is also called Blue Mountains in New
           South Wales. These ranges include the New England Plateaus, the Australian Alps,
           the Snowy Mountains, Blue Mountains and the Grampian Mountains. These landforms
           were made due to uplifting, folding and volcanic processes in the Earth’s Crust.

           Australia’s highest peak Mt Kosciusko (2228m) is situated in New South Wales in
           this region.

           Western Plateau


           The western plateau is a low, flat area that has been eroded over a period of millions
           of years. There are many deserts in the western plateau. This region is very dry due
           to cold water currents off the coast of Western Australia. Some of the deserts in this
           region are the Gibson, Tanami, Canning, Great Sandy and Great Victoria Desert.
           This region is rich for goldmines. The land in this region is not completely flat. It has
           some very low ranges but the maximum height is less than 500 m from the sea level.
           The western plateau is covered with sandy desert. The Pilbara, Arnhem land and
           Kimberly Plateaus are also high points in this area.

           Central Lowland

           The central lowlands are dry because rainfall is obstructed by the Eastern Highlands.
           It is a huge mass of old ancient crystalline rocks covering nearly two third of Australia.
           The Simpson Desert, which extends for 170,000 sq. km is in the central lowlands. The
           desert is popular for its Red Sanddunes extending north to south. The Lake Eyre is
           the largest salt lake in Australia found in the Simpson Desert. The Lake Eyre is the
           largest lake as well as the lowest point on the Australian mainland at15 m below the
           sea level.

           The Flinder Range in South Australia extends for 800 km and is located about 1100 km
           north to Adelaide. Its tallest peak is St. Mary Peak is 1171m tall. The River Murray
           and its tributaries mainly the Darling is called together as the Murray Darling.

           Climate and Vegetation


           Australia lies in the southern hemisphere just opposite climate to Nepal. When it is
           summer in Nepal, there is winter and vice versa. The climatic pattern of Australia is
           given below:

            Sl. No. Region            Vegetation                            Climate Type
            1.      Western Plateau   Poor Vegetation: desert plants, thorny bushes  Hot desert
                                      and scrubs
            2.      Extreme North     Evergreen forest                      Tropical Monsoon
            3.      Interior Parts    Tropical grasses                      Savanna
            4.      Murray-Darling Basin Tropical grassland such as Downs   Savanna
            5.      South East        Deciduous forest including eucalyptus trees  Temperate Monsoon


             Dynamic Social Studies - Book IX      234
   229   230   231   232   233   234   235   236   237   238   239