Page 128 - SST Class 08
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                                       Natural Resources








             Anything which has some utility for us is called a     Classification of Natural Resources :
             resource. Some resources have economic value,          1.  On the Basis of Origin of Resources :
             while some do not. For example; milk has eco-               (a)  Biotic              (b)  Abiotic
             nomic  value,  but  a  beautiful  landscape  has  no
                                                                         (a)  Biotic Resource :    All living things are
             economic value. But, both are important because
                                                                              known  as  biotic  resources.  These
             both satisfy some human needs.
                                                                              resources  are  obtained  from  the
                        NATURAL RESOURCES                                     Biosphere  and  they  have  life,  such  as

             Resources  that  we  find  in  nature  and  are  used            —  human  beings,  flora,  fauna,  fisher-
             without  much  modification  are  called  natural                ies, etc.
             resources.  For  e.g.,  air,  water,  soil,  sunlight,
                                                                         (b)  Abiotic  Resource  :      All  non-living
             minerals, flora and fauna, etc. All these are free               things  are  known  as  abiotic  resources,
             gifts of nature and can be used directly.                        such  as  —  wind,  water,  air,  rocks,
                                                                              metals, etc.
                                                                    2.  On  the  Basis  of  Exhaustibility  or
                                                                         Utility of Resources :

                                                                         (a)  Renewable      (b)  Non-Renewable
                                                                         (a)  Renewable  Resource  :        Resources
                                                                              which  can  be  renewed  or  reproduced
                      Water                      Soil                         are known as renewable resource. E.g.,
                                                                              solar  and  wind  energy,  water,  etc.
                                                                              Resources  like  wind,  sunlight  are
                                                                              present  in  such  huge  quantities  that

                                                                        Igneous                        Sedimentary
                                                                         Rock                             Rock
                                                                                    2             3

                     Sunlight                  Minerals



                                                                              1                          4

                                                                      Magma                                Metamorphic
                                                                                                              Rock
                                                                                           5


                       Flora                    Fauna                                 Rock Cycle


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