Hidrosfer  Debit air  Periodik

                    ® Asal                                   ® Atmosfer (Meteorik)

                                                                                                                                ® Dalam bumi           ® Tubbir (pada batuan sedimen)

                                                                    ® Dalam Bumi                                                                       ® Juvenil (dari penguapan magma)

                                                                                                          ® Letak        ® Dangkal (Phreatis)

                                                                                                                                ® Dalam (Artesis)

                                                                                                                                ® Pengertian

                                                                                                                                ® Syarat

                                                                                ® Tektonik

                                                                                                                                                                          ® Vulkanik 

                                                                                                                                                                          ® Tekto-Vulkanik

                                                                                                          ® Danau                         ® Penyebab  ® Glasial     

                                                                                                                                                                          ® Karst        ® Sempit (Dolin)

                        ® Darat (Hidrologi)                                                                                                                                       ® Luas (Uvala)

                                                                                                                                                                          ® Bendungan         ® Terbendung

                                                                                                                                                                                                          ® Bendungan

                                                                                                                                ® Macam  ® Aliran Air ® Running Wate Lake

                                                                                                                                                                          ® Lake Without Outlake

                                                                                                                                                                                    ® Soft Water Lake

                                                                                                                                                   ® Kandungan CO2 ® Medium Class Lake

                                                                                                                                                                                    ® Hard Water Lake

                                                                                                                                ® Manfaat Danau

                                                                                                                                ® Pengertian

                                                    ® tawar

                                                                                                                                ® rasa          ® Asin

                                                                                                          ® Rawa                                        ® Payau

                                                                    ® Permukaan bumi                            ® Keadaan air        ® Pasang surut

                                                                                                                                                                ® Tergenang

                                                                                                                                ® Manfaat rawa

                                                                                                                                ® Pengertian

                                                            ® Hujan  

        ® Sumber air       ® Gletsyer

                                      ® Campuran