Page 2 - Mind Map
P. 2

SUB TOPIC- THE MYSTERY OF THE END


                                               Trade

                                            became very
                                                                          City
                                                less
                                                                      organisation
                                                                      deteriorated




                                                                                        Rivers dried
                     REASONS                                                                up

                         FOR


                      DECLINE



                                                                                    Deforestation







                                                                                  Flooding



                                                                  Migration of

                                                                     people
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