Page 133 - SST Class 08
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Quiz Time                                           In India, gold is available in Karnataka, but it is
                                                                    not economically feasible to extract it.
            Fill in the blanks :
                                                                    Manganese
            1. ____________ are natural chemical compounds
               found in rock and ores.                              This is an important metal used for making alloys,
            2. ____________ minerals have wide applications         as steel. It is used in many industries, such as
               in different fields.                                 electrical batteries, bleaching powder, dying
                                                                    industry, tiles industry, textile industry etc.
            3. Iron is the ____________ of the modern age.
                                                                    Manganese is chiefly produced in Russia, Brazil,
            4. ____________ supplies more than 60% of gold          China, South Africa, Australia, India, Morocco,
               to the world.
                                                                    Ghana etc.
            5. Copper is essential for ____________.
                                                                    In India, manganese is chiefly found in the states
            Copper                                                  of   Karnataka,     Odisha,    Madhya      Pradesh,
                                                                    Maharashtra, Jharkhand etc.
            Copper is mainly used in electrical industries due
            to its quality of electrical conductivity. It is one of
            the earliest metals used by man. It is a soft metal     Activity
            but bronze is procured by mixing it with tin.            Collect samples of various mineral ores and display
                                                                     them in your classroom.
            Copper ore is available in Chile, USA, Canada,
            Armenia, Congo and Zambia.
                                                                                                                India
                                                                                                              Minerals
            In India, reserves of copper are found in Jharkhand
            and Rajasthan.

            Bauxite
            Aluminium is produced from this ore. It is in great
            demand due to its lightness, strength, electrical                  Khetri
            conductivity and resistance to rusting. Its alloys                 Makrana
            are widely used in industries, such as aircraft,                                      Palamau
            utensils, transports, electric appliances, chemicals                                 Hazaribagh
                                                                                 I    N   D    I    A  Singhbhum
            etc. It has gradually replaced copper. It requires                       Jabalpur  Bilaspur
                                                                                      Balaghat  Raigarh
                                                                                                Mayurbhanj
            cheap and abundant supply of electricity for                             Bhandara  Raiipur  Keonjhar
            purification.                                                         Chandrapur  Bastar
                                                                                       Bailadila
            The main producers of bauxite are Jamaica,                                 Warangal
            Russia, Australia, Guinea, Brazil, India, China etc.                          Guntur
                                                                           GOA        Kurnool
                                                                                    Cuddapan
            India has rich bauxite deposits in Jharkhand,                     Chitradurga              Iron
                                                                                  Kolar
            Chhattisgarh, Madhya Pradesh, Maharashtra and                      Kudremukh  Chittoor     Copper
                                                                                                       Bauxite
            Tamil Nadu.                                                               Salem            Manganese
                                                                                       Tiruchchirappalli  Gold
            Gold                                                                                       Mica
                                                                                                       Marble
            Gold is a precious metal as this is used in                                 SRI
                                                                                        LANKA
            jewellery just to show one’s prosperity. Women’s
                                                                                Distribution of minerals in India
            love for gold is renowned. It is also used as
            security and medium of exchange.                                   CONSERVATION OF MINERALS
            Gold is chiefly produced in South Africa. Other         The demand for mineral resources has increased
            gold-producing countries are Canada, Japan and          worldwide because of excessive use of machinery
            the US.                                                 and improved living conditions. Minerals are a
                                                                                    Minerals and Energy Resources
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