Erosion- gradual removal of something caused by wind, water or other factors

Flood - water over floods in a dry area
Weathering- wearing away the surface
Deforestation- removing a large area of trees
Earth's plates - trees
Landslides- trees the sliding of a rock from a mountain or cliff
Glaciers-slowly moving river of ice formed of snow on mountains around
Erosion- moving the process of something being eroded by wind, water or other natural things.
rapid process erosion- 
slow process erosion-
Tsunami-  things a long high sea wave by an earthquake or submarine or landslide.
Earthquake- sudden shaking of the ground by the seismic waves through Earth’s rocks.
Debris- small pieces of a broken or wrecked of something.
Topsoil-top layer of soil  
Sediment- something that settles at the bottom of a liquid.
Volcanoes- something a mountain or hill that has hot viper, gas that is being erupted from the earths surface. 
Canyon- a deep path with one river flowing through it. 
Plateau- a area with a high ground 
Dune- A ridge or other loose things formed by the wind 
delta- a triangular area of sand and stones at the mouth of a river   
Valley- a low area between hills, mountains with a river streaming through