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SAI International School
                                               Subject - Chemistry
                                                     Class - VIII
                                       Topic –Pollution of Air and water
                                        Sub-Topic-Water Pollution and its causes

                                                                     MIND MAP























                                                                                        Harmful Effects
                                      Sources of Water   Water Pollution                  of Water
                                        Pollution
                                                                                          Pollution

                   Untreated                                 Untreated    Water-borne   Harms Aquatic   Pollution of
                   Sewage      Use of Fertilisers  Use of Pesticides  Industrial Waste  diseases  lives  Water bodies




































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