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SAI INTERNATIONAL  SCHOOL
                              Std VII      GEOGRAPHY        LESSON 5- WATER
                                                         MINDMAP - 3











                                                         WAVES

                                               are caused by wind moving
                                               across the surface of the
                                               water














                       TSUNAMI                                                          ASIAN TSUNAMI

             A large wave on the ocean,                                            26 December, occurred at
            usually caused by an undersea                                                    07:58:53
           earthquake, a volcanic eruption,
                  or coastal landslide.                                                Due to underwater
                                                                                   earthquake, magnitude 9.0
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