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SAI INTERNATIONAL SCHOOL
                                                      CLASS-VII
                                            SUBJECT - CHEMISTRY

                                TOPIC- MANAGEMENT OF WASTE WATER
                             SUB TOPIC- SOURCES OF WATER POLLUTION


                                                     MIND MAP










                                                         Water
                                                       Pollution


                                                 Sources


                  Industrial      Mining       Accidential    Chemicals        Sewer        Domestic
                    Waste         Activity     oil Lickage                     lickage        Wastr















































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