another one drrr

• landslide


  ground movemnpent on a sloping terrain. that moves downwards
• types of landslides


  soil creep, slumping, debris and rock fall.
• sinkhole


  topographuc depression created when groundwater
• types of sinkholes


  cover collapse, cover subsidence, dissolution,artificial
• earthquake


  release of enegry in the earth's crust. sudden shake of ground
• measuring earthquake by 


  seismometers (instrument) and seismographs (height and amplitude)
• vocanism


  eruption of molten rocks magma/lava
• erosion


  removes soil, rock or dissolved material from one loc. into another
• caused by erosion

  erosion caused by sporadic running water
• tsunami


  giant waves of water