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SAI INTERNATIONAL SCHOOL
                                                        Class-7

                                                      Mind map
                                                  Subject-Physics
                                      Ch.- Water: The Life-giving Liquid

                          Subtopic- Scarcity of Water & Rainwater Harvesting






                                                  Scarcity of water


                                             & Rainwater Harvesting





                 Scarcity of Water                Causes of                              Water
                                             Scarcity of Water                       Conservation




                      Water scarcity is due
                        to lack of enough
                         clean and safe                1. Population Growth              Rainwater Harvesting
                              water.                        2. Wastage                  (collection  of rainwater
                                                         3. Global warming                 falling on roofs of

                                                          4. Deforestation                     buildings)
                                                     5. Over exploitation of the
                                                            groundwater
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